Menu

#2 :: SLOAN OPTIMA: EAF-200 (CODE #: 3335164)

The Optima EAF-200 is almost identical to the Optima EAF-350 that we voted #1. The main difference between the EAF-200 and the EAF 350 is that the 200 is hardwired power supply as opposed to the 350 being battery powered. The EAF-200 also appears to lack the bi-stable Magnetic Solenoid Valve. Since this valve provides energy savings for the EAF-350, and the EAF-200 lacks it, we ranked it lower. Other than this one feature, the EAF-200 is still a fantastic faucet with the all the other amazing features, certifications, and compliances as the EAF-350 (including the carbon offset option, which not many other Sloan faucets seem to have).

KEY FEATURES

Flow Rate: 0.35 GPM (1 Lpm)
Spray Type: Multi-Laminar (MLM)
Sensor Type: Infrared (IR)
Mounting Type: Single Hole
Power Supply: Hardwired Less Transformer (HLT)
Temperature Mixer: Mixer Not Included (but can be added)
Factory Default Timeout: 30s
Factory Default GPC: 0.175
Double Infrared Sensors with Automatic Setting Feature and Microprocessor
Automatic Self-adapting Sensor Technology
Magnetic Solenoid Valve
6 Volt DC Plug-in Adapter
IQ-Click feature permits activation of continuous run and temporary off modes

COMPLIANCES AND CERTIFICATIONS

ADDITIONAL INFORMATION

#3 :: SLOAN OPTIMA: ETF-80 (CODE #: 3365321)

What’s unique about the ETF-80 is that the Sloan site actually lets you customize which compliances/certifications you want your faucet to be equipped with. In this regard it is one of the most customizable of the Sloan faucets because it lets the consumer prioritize which compliances and certifications are most important to them. While this is definitely a cool feature, it should be noted that all these Sloan faucets considered do come standard with many awesome and sustainable compliances and certifications, so it is hard to say how much of an edge this is. Other than that, it shares many of the same features as our #1 and #2 choice but lacks the carbon offset option, which is why it has ranked right below those models that do include it.

KEY FEATURES

Flow Rate: 0.5 GPM (2 LPM)
Spray Type: Multi-Laminar (MLM)
Sensor Type: Infrared (IR)
Mounting Type: 4″ Centerset
Trim Plate: 4″ (102mm) (4)
Power Supply: Box Transformer (BOX)
Temperature Mixer: Above Deck Mixer (ADM)
Finish: Polished Chrome (CP)
Factory Default Timeout: 30s
Factory Default GPC: 0.25

Compliances/Certifications vary based on customization..

600 PRODUCT PAGE | 610 PRODUCT PAGE

#4 :: SLOAN OPTIMA: ETF-600 (CODE #: 3365773) / ETF-610 (CODE #: 3365166)

These two models are exactly the same except that the 610 has a Plug Adapter power supply while the 600 has a Box Transformer power supply. They are great faucets but have ranked #4 because they don’t have the carbon offset option that #1 and #2 have, and it is not as customizable as #3. With that said, it’s notable (and impressive) that all of our top Sloan faucets are very similar and we have only been able to differentiate them based on the intricate details like these that may or may not be super influential when making a purchasing decision.

KEY FEATURES

Flow Rate: 0.35 GPM (1 LPM)
Spray Type: Multi-Laminar (MLM)
Sensor Type: Infrared (IR)
Power Supply: Box Transformer (BOX)
Temperature Mixer: Back-Check Tee (TEE)
Factory Default Timeout: 30s
Factory Default GPC: 0.175

COMPLIANCES AND CERTIFICATIONS

ADDITIONAL INFORMATION

#5 :: SLOAN: SF-2100, 2200, 2300, 2400

These four models are exactly the same to each other and almost exactly the same to #1-4 above. They have only scored lower than the ETF 600/610 because they have less compliances and certifications listed on their respective spec sheets than the 600/610 models. They are all still great products though that offer the same low .35 GPM flow rates, low-lead compliance, and LEED Credits for anyone seeking LEED certification like we are.

KEY FEATURES

Flow Rate: 0.35 GPM (1 LPM)
Spray Type: Multi-Laminar (MLM)
Sensor Type: Infrared (IR)
Power Supply: Plug Adapter (PLG)
Temperature Mixer: Back-Check Tee (TEE)
Factory Default Timeout: 30s
Factory Default GPC: 0.175

COMPLIANCES AND CERTIFICATIONS

ADA Compliant, ASME A112.18.1 Compliant, BREEAM Water Credit, CalGreen Compliant, CEC Compliant, cUPC Certified, cUPC Low Lead Compliant, Green Globes Water Credit, NYC604.4, Proposition 65, Satisfies LEED Credits, TAS, UPC Certified, UPC Low Lead Compliant.

Sloan: SF-2100 (Code #: 3362111) Spec Sheet
Sloan: SF-2200 (Code #: 3362153) Spec Sheet
Sloan: SF-2300 (Code #: 3362115) Spec Sheet
Sloan: SF-2400 (Code #: 3362178) Spec Sheet

#2 MOST SUSTAINABLE FAUCET COMPANY: TOTO

Toto was the second most sustainable company. What made them number two is that they had a less-updated version of their sustainability report and Sloan shared more about their products’ sustainable technology. It was a very close choice though. Like Sloan, Toto has a very comprehensive sustainability presence on their website. From company training to the principles and goals of Toto, they are very focused on the environment. The United Nations’ Sustainable Development Goals (SDGs) are integrated into their practices and they also have many sustainability related company goals they are seeking to achieve. Toto looks at six themes of global environmental activities: (1) Conserving water, (2) Preventing global warming, (3) Conserving natural resources, (4) Keeping the Earth clean, (5) Conservation of biodiversity, and (6) Contribution to local communities. They explain very comprehensively how they address all of these issues through their supply chain manufacturing of their products’ cradle-to-grave sustainable life cycle. Using their due diligence and legal compliance towards the environment, they are working towards being a highly sustainable company. They are also LEED v4 compliant and have earned many philanthropic awards over the years. The company also partners with Sustainable Minds, which is a software and information company that looks to integrate and innovate through environmentally-sustainable product design.

TOP TOTO FAUCET PRODUCTS

Here are the best water-saving faucets we found from Toto. Keep in mind that these are the best products as of September 2019. New designs are constantly being created but this list can still be used as a baseline for comparison even as it becomes dated. We wouldn’t recommend any new product that doesn’t at least meet the performance standards of the products listed here. We will also add to this page our top choices purchased (best on the market at that time) as we build the Earthbag Village, Duplicable City Center, and other 6 sustainable village models. So expect this page to evolve for many years.

#1 :: TOTO STANDARD ECOPOWER^® FAUCET (TEL103 Series)

We are a big fan of these Toto products because they use “Ecopower” rather than requiring a hardwired connection, batteries, etc. Ecopower “harnesses the energy of running water to power itself.” It should be noted that all of these Toto products had almost the exact same features on their spec sheets. The only differences that we were able to identify may not actually be very influential in consumer decision-making. Because each of these products are so similar, the most significant difference was cost. Therefore, since they all have the same features, those that offered these features at a cheaper price were ranked higher. Thus we have ranked the Toto Standard EcoPower Faucet as #1 because it is around 30%+ cheaper than other models with identical features. It has a flow rate of 0.35 GPM, uses the flow of water to power itself (Toto’s “EcoPower” — no need for external power source), and is equipped with an infra-red sensor to ensure water is only released when a user activates it. Additionally, the Standard has Vandal resistant aerator housing, which only one other model seems to have (the Libella™ models). Thus since all the top Toto products are almost identical, and the Standard is significantly cheaper, we have ranked the Standard #1.

PRODUCT PAGES | MODEL-SPECIFICS SPREADSHEET

#2 :: LIBELLA™ LINE OF FAUCETS

Same exact features as the standard, but $200-300 more expensive for the body style. See the Faucet Spreadsheet for feature specifics and options.

Toto Libella™ Line of Water-saving Faucets, water-saving faucets, energy-saving faucets, bathroom faucets, bathroom sink, eco-faucets, sustainable faucets, infrared sensor faucets, timer faucets, green faucets, LEED compliant faucets, Highest Good housing, sustainable bathrooms, bathroom spigot, One Community Global

#3 :: HELIX™ LINE OF FAUCETS

This line of faucets are described as “designed for high-traffic spaces.” Seeing as the key features appear to be exactly the same as the standard also, this must be in reference to the body style. The prices of the assorted models range from about $800-950. See the Faucet Spreadsheet for feature specifics and options.

Toto Helix Line of Water-saving Faucets, water-saving faucets, energy-saving faucets, bathroom faucets, bathroom sink, eco-faucets, sustainable faucets, infrared sensor faucets, timer faucets, green faucets, LEED compliant faucets, Highest Good housing, sustainable bathrooms, bathroom spigot, One Community Global

PRODUCT PAGES | MODEL-SPECIFICS SPREADSHEET

KEY FEATURES FOR ALL OF THE ABOVE

Self-generating hydro-powered EcoPower system
No minimum daily usage requirement
Micro-sensor positioned underneath the spout head for accurate hand detection ensuring smooth and consistent water distribution
Vandal resistant aerator housing
Durable chrome plated spout body
Single-hole mount
Kit includes spout body, controller box , and mounting hardware – less supply lines
0.35 GPM aerated flow option
Contributes to earning LEED^® credits

CODES/STANDARDS FOR ALL OF THE ABOVE

Operates below federally mandated consumption limit of 0.25 gpc
Complies to California Green Building Code, CALGreen of 0.20 gpc
Meets or exceeds ASME A112.18.1M/CSA B125.1, and NSF372-2011
Certifications: IAPMO(cUPC), State of Massachusetts, and others
California Green Code and City of Los Angeles Water Efficiency Ordinance
ADA compliant
Complies with federal and state statutes as low-lead (contains a weighted average of 0.25% lead or less)

#3 MOST SUSTAINABLE FAUCET COMPANY: KOHLER

The third most sustainable company was Kohler. This company was chosen for the third spot because they didn’t have the most updated sustainability report, but they still had an abundant sustainability presence on their website. They had many goals towards their commitment to the environment through working towards a net-zero environmental impact by 2035. Kohler also looks to the United Nations’ SDGs and has many community outreach programs focused on water conservation and projects that they have created around the nation. Similar to Sloan, they also have adopted Kohler’s Environmental Product Declarations (EPDs) that create a level of transparency by labeling the products’ life cycle through the entire supply chain. They are also a LEED certified company. A very impressive current initiative they have is a solar panel farm in South Carolina that has more than 4,000 solar panels that produce 1,000 kilowatts of power and offsets the amount of power supplied by their local utility by 9%. That is not a huge contribution, but it is something that shows that they are more committed than many to being a sustainable company. They have many partners, some to note are: WaterSense EPA, Habitat for Humanity, Harvard Center for Climate, Health, and Global Enterprise, The Water Council, and Rotary International. For the full list of Kohler’s partners, take a look at the Benchmarking Tab on our research spreadsheet.

TOP KOHLER FAUCET PRODUCTS

Here are the best water-saving faucets we found from Kohler. Keep in mind that these are the best products as of September 2019. New designs are constantly being created but this list can still be used as a baseline for comparison even as it becomes dated. We wouldn’t recommend any new product that doesn’t at least meet the performance standards of the products listed here. We will also add to this page our top choices purchased (best on the market at that time) as we build the Earthbag Village, Duplicable City Center, and other 6 sustainable village models. So expect this page to evolve for many years.

#1 :: KOHLER K-7516-CP

All of the Kohler options listed below have Kohler’s Insight Technology, which is described on their website as “… an adaptive infrared sensor that gathers and analyzes the surrounding area upon installation. After recording these details, Insight calibrates the sensor to filter false triggers and optimize the faucet’s operation.” We like that all these faucets will gather data to decrease the number of times in which the sensor is mistakenly activated. We chose the K-7514 and K-7516 models as our #1 models because they both have a key feature that sets them apart from the other brands, namely that they are the only ones from these top products that are powered by a 30-year hybrid energy cell. They are both .5 GPM faucets though, not as conservation-minded as the .35 GPM faucets above.

KEY FEATURES

0.5 GPM (1.9 l/min) flow rate
Factory set 30 second max. continual run cycle
Vandal-resistant aerator
24″ (610 mm) flexible supply hoses for easy installation
5-5/16″ (135 mm) spout reach
Less drain
Less temperature mixer
Powered by the 30-year hybrid energy system
Insight™ adaptive infrared technology
Waterproof shroud protects electronic components
Water-saving vandal-resistant 0.5 GPM aerator

#2 :: KOHLER K-7514-CP

The KOHLER hybrid energy system is a first-of-its kind 30-year power solution for touchless faucets. When combined with Insight Technology, this system provides an environmentally-friendly, virtually maintenance-free electronic faucet. We ranked this faucet below the 7516 model because it wasn’t listed as having a “Factory set 30-second maximum continual-run cycle.”

KEY FEATURES

0.5 GPM (1.9 l/min) flow rate
Above-counter valve for easy installation and maintenance
Vandal-resistant aerator
5″ (127 mm) spout reach
Without temperature mixer
Includes 30-year Hybrid Energy Cell
Less drain
Powered by the 30-year hybrid energy system
Insight™ adaptive infrared technology
Waterproof shroud protects electronic components
Water-saving vandal-resistant 0.5 GPM aerator

#3 :: KOHLER “PURIST” K-T11837-CP

The Purist K-T11837-CP is definitely very similar the the #1 option with the main difference being that this one is hardwired rather than powered by a long-lifetime energy cell. The main reason it has ranked lower is because it does have the option to be left on continuously for about 30 seconds, which could be a hindrance to water conservation if abused. It is unclear if this is setting is able to be customized. Also it should be noted that this is the only Kohler faucet from our top selections that has Safe Drinking Water Act (SDWA- Low Lead) compliant in spec sheet. This is not to say that the others do not have this compliance, but this is the only one that explicitly mentions it.

KEY FEATURES

0.5 gal/min (1.9 l/min) flow rate
This is trim set only. It requires valve kit to complete the faucet
Vandal-resistant aerator
8-1/4″ (210 mm) spout reach
Less drain
Safe Drinking Water Act (SDWA- Low Lead) compliant
On demand on and off. Valve kit is factory set to 30 second max. continual run cycle if it turned on continuously
Valve kit has electronic Insight™ Sensor Technology for accurate and consistent activation
This trim set can be used with 11830-NA (Hybrid power) wall mount valve or 11843-NA (AC Power) wall mount valve

#4 MOST SUSTAINABLE FAUCET COMPANY: GROHE

GROHE is the fourth most sustainable company on this list. Of the companies that had a sustainability report, theirs was the least updated – from 2015/2016. They are, however, a very sustainable company that has pushed forward with many sustainable innovations for their products and that is why they are ranked at number four. This company takes a comprehensive look at how they can be sustainable through their products and through the workplace. They are committed through their products, processes of creating the products, employees being trained, taking their customers safety and health into consideration with the products, suppliers and service producers of where they get their raw materials for their products, and their level of social responsibility. This company has created “GROHE’s Sustainability Policy,” which looks at policies that consist of principles and guidelines for sustainable action. They have also created the GROHE EcoJoy Technology line that are products specifically designed to conserve water and energy. And on their website they offer a water/energy calculator that computes the costs and benefits of each product. They are also under the LIXIL Net Zero Program that looks to offset greenhouse gas emissions. LIXIL is a Japanese building and housing company that, over the years, has expanded internationally and acquired many companies such as GROHE and American Standard (which is also in this list, but later on).

TOP GROHE FAUCET PRODUCTS

Here are the best water-saving faucets we found from GROHE. Keep in mind that these are the best products as of September 2019. New designs are constantly being created but this list can still be used as a baseline for comparison even as it becomes dated. We wouldn’t recommend any new product that doesn’t at least meet the performance standards of the products listed here. We will also add to this page our top choices purchased (best on the market at that time) as we build the Earthbag Village, Duplicable City Center, and other 6 sustainable village models. So expect this page to evolve for many years.

#1 :: GROHE EUROSMART COSMOPOLITAN E AND GROHE EUROPLUS E

Like the other companies, the GROHE top-of-the-line faucets were all very similar to each other. All of the GROHE products evaluated have a battery service life of up to seven years (150 cycles/day). Additionally, they are all easy to switch between lithium battery (6 V) and mains supply (230 V). They also have safety shut-off after 60 seconds, adjustable between two and 420 seconds. They also come standard with a temperature mixer. What sets the Eurosmart Cosmopolitan E and the Europlus E models above the rest is that they have the option to add the GROHE Powerbox. The GROHE Powerbox harnesses the flow of water as an energy supply. This is how it works: “A turbine in the power box is driven by the water supply each time the fitting is operated. This converts kinetic energy into electrical energy and stores it to operate the infrared electronics. Using the generator for as little as 60 seconds delivers enough electricity to power the fitting for 24 hours.” The Powerbox also has a service life of 10 years, this helps reduce required maintenance and lowers operating costs.

KEY FEATURES

Faucets group I (DIN 4109)
Flow pressure min. 0.5 bar/recommended one to five bar
Flow rate 5.7 l, pressure-independent
Hot water stop-valve
Cleaning mode via sensor
Plug and play: easy to switch between lithium battery (6 V) and mains supply (230 V)
Battery service life of up to seven years (150 cycles per day)
High IP protection class for one hole mixers IP 59K
Battery voltage indicator through sensor
Individual setting for automatic flushing and thermal disinfection
Protection against scalding – stops automatically when a hand approaches
Safety shut-off after 60 seconds, adjustable between two and 420 seconds
Program selection (seven programs), manual or remote control
Battery compartment in non-visible area below the wash basin for ease of maintenance
Can be combined with Grohtherm Micro
Vandalism-protected rotation lock (can be retrofitted)

#2 :: GROHE ALLURE E AND ESSENCE E

The Allure E and Essence E are also really great faucet options from Grohe. Their features are almost exactly identical to each other, with the main difference being the body style. They have a flow rate of 0.5 GPM and are equipped with a sensor that can be configured to shut off as quickly as 2 seconds after a user is no longer detected. They have ranked below the Europlus E and Eurosmart Cosmopolitan E because the Allure E and Essence E are not compatible with the Grohe Powerbox.

KEY FEATURES

Faucets group I (DIN 4109)
Flow pressure min. 0.5 bar/recommended one to five bar
Flow rate 6 l; pressure-independent
Hot water stop-valve
Cleaning mode via clip
Mains (230 V) and lithium battery (6 V)
Battery service life of up to seven years (150 cycles per day)
High IP protection class: IP 59K certification
Individual setting for automatic flushing and thermal disinfection (remote control)
Safety shut-off after 60 seconds; adjustable between two and 420 seconds
Battery voltage indicator (remote control)
Solenoid valve and battery in the mixer body
Vandalism-protected rotation lock (can be retrofitted)
Can be combined with Grohtherm Micro

#5 MOST SUSTAINABLE FAUCET COMPANY: MOEN

The fifth most sustainable company is Moen. This company is ranked number five because it did not have as robust of a sustainability presence on their website as the other companies observed. Of course, they are still a sustainable company because they made the list, but when being ranked with the chosen companies in this list, they were not the top choice. They do have many initiatives that are noteworthy, such as how all of their faucets are certified to meet the WaterSense EPA standard criteria by using up to 32% less water than a conventional faucet. Their most recent waste reduction and recycling initiatives include recycling nearly 82% of waste from their manufacturing process and almost 20% of all water used. Also, more than 74% of Moen’s production (in dollar terms) was made from raw materials that included some amount of recycled material. In addition to this, recycling more than 13 million pounds of metal, 6.5 million pounds of cardboard, 3.8 million pounds of solid waste, only using recycled paper and soy-based inks for copies.

TOP MOEN FAUCET PRODUCTS

Unfortunately the Moen website only offered a few faucet options equipped with sensors, all three of which were kitchen faucets. Thus all the bathroom faucet options have no sensors and would not be able to be set to turn off after a specified amount of time. Additionally, we were not able to find any models that were below 1.0 GPM. Our criteria specified that in order to be considered sustainable the faucet would need to be below 0.5 GPM, or if not, have the ability to add a water saving nozzle. Moen did not meet our standards as it was over 0.5 GPM and did not have sensors, therefore no Moen products were considered.

#6 MOST SUSTAINABLE FAUCET COMPANY: AMERICAN STANDARD

The sixth most sustainable company is American Standard. Being a classic faucet company that was formed from Crane Plumbing, a company that was founded in 1906, it is surprising that American Standard would be ranked last on this list. They came short in many different sustainability and environmental areas. For instance, they did have a sustainability section on their website, but it was very small and insignificant. It didn’t explain a lot of what they are doing in regards to initiatives or goals through sustainable measures. Also, there was no specific sustainability report found for this company, which shows that American Standard does not have a commitment to providing a transparent report for its stakeholders and the public to see all that they are doing in the sustainability and environmental arena. The only impressive aspect regarding sustainability that we could find on their website or for their products was water-savings calculators to compute how much you could save commercially and residentially for each product on their website. Also, there were no sustainability partners listed on their website, showing that they are not interested in collaborating with other sustainable organizations for various initiatives, programs, and/or goals. Even though they fell short of the others though, we included them here at the end because we still thought they were sustainable and environmentally conscious enough through good business practices and building sustainability into their workplace and overall company. Just not to the extent that the other five companies were.

TOP AMERICAN STANDARD FAUCET PRODUCTS

Being the lowest-ranked company on our list, we only included one water-saving faucet from American Standard. This was their best product as of September 2019. New designs are constantly being created but the product below can still be used as a baseline for comparison even as this page becomes dated. We wouldn’t recommend any new product that doesn’t at least meet the performance standards of the product below though. We will also add to this page our top choices purchased (best on the market at that time) as we build the Earthbag Village, Duplicable City Center, and other 6 sustainable village models. So expect this page to evolve for many years.

#1 :: AMERICAN STANDARD 702B305.002 and 7025303.002

Though American Standard is #6 on our list, they still have some really great offerings. We have chosen 702B305.002 and 7025303.002 as our #1 from them because they share the same features, namely providing a flow rate of 0.5 GPM. It is equipped with an infrared sensor just like all of our top products. It has above-deck mixing and uses a built in thermostat to maintain temperature (though hot and cold water come from separate inlets). It meets ASSE 1070, ADA, CALGreen, WaterSense certifications.

KEY FEATURES

0.5 gpm pressure compensating, vandal-resistant multi-laminar spray
SmarTherm® Safety Shut-Off: Integral thermostatic hot water temperature limiter meets ASSE 1070 without a separate thermostatic mixing valve
Above-Deck Mixing: Allows user to manually adjust temperature. Adjustable hot limit stop. Red & blue indicators
Removable Mixing Handle: Installer can set temperature and remove handle to prevent user adjustment. Cover plug included
Dual Inlets: For hot and cold water. Check valves included to prevent cross flow. Filter assemblies protect the solenoid valve from debris
Hygienic, touch-free operation
Clean, Integrated Design: All electronics contained in faucet spout. No control box below deck
Easy Installation & Maintenance: Faucet installs from the top. All serviceable parts are easily accessible
Flexible Selectronic® Platform with programmable sensor and interchangeable power supplies
Self-Cleaning Solenoid Reduces Maintenance: Integral wiper spring prevents clogging and run-on. Silicon seals
Adjustable Range: Detection zone can be adjusted manually or with optional remote control
Fail-Safe: Faucet automatically shuts off upon loss of power or dead battery. No reset required
Optional Remote Control Allows for Customization: Auto Purge: Periodically purges stagnant water from faucet and supply lines
Timing is adjustable with optional remote control. Safety Timer: Turns water off if the sensor is blocked for 55 seconds. Timing is adjustable with optional remote control
Lead-Free: Faucet contains ≤ 0.25% total lead content by weighted average

Purchasing and Specifications | Purchasing on Amazon

BEST WATER-SAVING FAUCETS
WE COULD FIND ON CONSUMER SITES

The following faucets were selected from over 10 hours researching everything available on the online consumer market as of March 2019. We chose these faucets and accessories to share the diversity that is available and based on current water-saving technology, a thorough assessment of the available internet reviews, price, durability, and features we felt would make them enjoyable to use. There are many many more than what we’ve listed here, so we tried to choose one from each of the various design options and explain why we ranked them as we did to highlight the functionality differences. Other water-saving faucets exist and new designs are constantly being introduced, so we suggest you use the suggestions below as a guide, find the features you like most, and then explore the huge diversity of different manufacturers to find the look and function perfect for your project.

#1 :: SLOAN SF-2450 ELECTRONIC COMMERCIAL FAUCET

The Sloan SF-2450 Faucet was chosen as our #1 choice because it has the option of a built-in .35 of 0.5 GPM flow rate, runs water only while the person is activating the sensor, and gives us the ability to use a fixed water temperature. The model is also ADA compliant, offers a non-aerated spray head, and is a very hygienic option because its automatic function means no touching of the buttons. Other features include an adjustable sensor range, a splash-proof circuit control module that is a part of the faucet, and a filtered solenoid valve with a serviceable strainer filter. It can be hardwired in or can run on four AA batteries that will provide 2 years of use at 8,000 cycles/month. It’s also from the #1-ranked company identified during our sustainability benchmarking process.

KEY FEATURES

LEED v4 Compliant
Laminar or Aerated Spray Types
Option of a built-in .35 of 0.5 GPM flow rate
Runs water only while the person is activating the sensor
Hardwire it or runs on 4 AA batteries to provide 2 years of use at 8,000 cycles/month
Has a filtered solenoid valve with serviceable strainer filter
It has an adjustable infrared sensor range
It is ADA compliant
Temperature control options include a back-check tee (TEE) or below-deck manual mixing valve

PROS/CONS COMMENTS

“Perfect for half baths”
“The standard for electronic faucets”
“The real deal – Quality!”
“So much quieter than the one we had before”
“Five Stars”
“As Expected”

ADDITIONAL INFORMATION

Company Website | Faucets.com | Amazon | Spec Sheet | Other Options Brochure

#2 :: MELO AUTOMATIC SENSOR FAUCET

The Melo Automatic Sensor Faucet was chosen as our #2 choice because it has an adjustable time option, but we don’t consider this as efficient as our auto-off choice above. Like all the choices here, this faucet is completely motion detection operated and the adjustable factory setting comes set to 30 seconds. We liked the “smart” aspect of this faucet, using a sensitive sensor with infrared AI Smart-Chip for a non-dripping design and the ability to self-adjust for its best detection zone as per the color and shape of your lavatory. This faucet can be used commercially or for residential use, has a 360 degree rotating neck, and is ADA compliant. It also runs on 4 AA alkaline batteries that can be used for 2 years at 200 cycles a day.

KEY FEATURES

4AA alkaline batteries can be used for 2 years at 200 cycles a day
Sensitive sensor with infrared AI Smart-Chip for non-dripping design
The faucet can be adjusted for how long to run
100% Touch-free operation
360 degree rotating neck
ADA Compliant
Flashing light indicators for power up, low battery, and solenoid function
Intelligent: with its micro-computer controlling its action, the faucet can self adjust its best detection zone as per the color and shape of lavatory

PROS/CONS COMMENTS

“Super easy to install”
“This sensor faucet worked as expected”
“Sensor issues”
“Perfect”
“This is exactly what I wanted for the bathroom upstairs”

ADDITIONAL INFORMATION

#3 :: SLOAN OPTIMA SOLIS SOLAR-POWERED SENSOR-ACTIVATED FAUCET

We chose the Sloan Optima Solis Solar-powered Sensor-activated Faucet as our #3 choice because it works with ambient light, like a solar-powered calculator. Its integrated power plant storage cell transforms light from any source into electrical energy. This helps to achieve LEED credit points by conserving energy and water, making it ideal for “green” building. It regulates water flow using an electronic sensor that automatically turns water on/off and has an integral temperature control for hot or cold water operation with integral spout temperature mixer. It does not have an adjustable time or sensor range option though. It’s also from the #1-ranked company identified during our sustainability benchmarking process.

KEY FEATURES

.5 or 1 gallon flow rate options
Works with ambient light, like a solar-powered calculator
Integrated power plant storage cell
LEED v4 compliant
Water temperature can be adjusted by the user
Hot adjustable water limit set point
Integral temperature control for hot or cold water
Standby mode (option) permits light ring to remain illuminated with
dim white light

PROS/CONS COMMENTS

“These are some of the best faucets ever made”
“Good ion battery that will last up to 10 years”
“Engineering is prime”
“Use very little water”
“Great faucet”
“Reliable faucet for kids bathroom”

ADDITIONAL INFORMATION

Company Website & Related Faucets | Purchasing on Amazon | Spec Sheet

#4 :: KOHLER K-13468-VS TOUCHLESS FAUCET

The Kohler K-13468 touchless faucet is #4 on our list because it comes standard with a .5 GPM flow rate, a 30-second max continual-run cycle, and adaptive infrared technology that gathers and analyzes the surrounding areas upon installation, records the details, and then calibrates the sensor to filter false triggers and optimize the faucets operation. Kohler has also been building products since 1873! A waterproof shroud protects electronic components and it is made with a vandal resistant aerator. One possible downside to this faucet is that it requires an AC power supply. It’s also from the #3-ranked company identified during our sustainability benchmarking process.

KEY FEATURES

Requires an AC power supply
0.5 gal/min (1.9 l/min) flow rate
Factory set to 30 second max continual-run cycle
Waterproof shroud that protects electronic components
Temperature control handle option on it
It is AC Powered

PROS/CONS COMMENTS

AC Power could be a pro or a con, depending on your preferences
“It’s a nice faucet”
“Well made”

ADDITIONAL INFORMATION

Click Here for the Company Website | Purchasing on Amazon | Spec Sheet

#5 :: FYEER FN0103S AUTOMATIC TOUCHLESS-SENSOR FAUCET

Fyeer has been designing quality kitchen, bath, and bar faucets for more than 20 years and the Fyeer automatic sensor touch-free faucet is no exception. The FN0103S Automatic Touchless-sensor Faucet is #5 on our list because it comes standard with a 2 GPM flow rate and a factory-set 60-second time out for water flow. These mean more water used and less sustainability (and definitely doesn’t qualify for LEED points), but may be desirable settings for others. So we’ve included this faucet here mainly to point out these features as something to be aware of and consider – and keeping in mind that a Faucet Accessory can probably be attached and fix this flow rate issue. Like several of the ones above, the sensor is powered by a 4-pack of AA batteries and the company says these will last for around 7,000 uses, or about 2 years for daily use. AC/DC power connections are available as an option too. It is ADA complaint.

KEY FEATURES

It is an automatic sensor touch-free faucet
2 GPM flow rate – may be correctable with one of these Faucet Accessories
Factory-set 60-second time out for water flow
Sensor batteries last for around 7,000 times
AC/DC power is an alternate option if batteries aren’t desired
ADA Compliant

PROS/CONS COMMENTS

We couldn’t easily find the spec sheet, so it’s not included in the links below
“One year later, still working great!”
“Great product”
“Low price, looks great, performs well”
“No need for expensive names here”
“Unit looks good”
“It’s magic”

ADDITIONAL INFORMATION

BEST WATER-SAVING FAUCET
ACCESSORIES WE COULD FIND

Our research also included identifying the best faucet accessories. These are great for upgrading your current faucet and, in many cases, can even be combined with the faucet recommendations above. While we’re talking accessories, it’s helpful to mention that the easiest way save water is to turn it off when not using it. Meaning turn it off while brushing teeth, soaping hands, etc. rather than letting it run. In most households this will save even more water than upgrading your faucet. Upgrading your faucet AND turning the water off when not in use saves even more.

#1 :: NEOPERL^® MIKADO WATER-SAVING FAUCET AERATOR INSERT

The NEOPERL^® Mikado Water-Saving Faucet Aerator Insert was chosen as our #1 choice because it uses the least amount of water at an impressive 0.35 GPM flow rate and only replaces the aerator part of a faucet. This means saving water and materials because you don’t end up throwing away (or indefinitely storing) your old faucet-aerator housing. This aerator also offers a distinctive flow pattern that the company says “will add elegance to any bathroom.” The replacement aerator fits most faucets with 15/16 in. -27 or 55/64 in. -27 housings and comes in a pack of 6 for $9.32 through Amazon.

KEY FEATURES

Impressive .35 GPM flow rate
Saves waste by only replacing the inside of the faucet housing, not the housing and the insides
More affordable than most because it uses less materials by only replacing the insides
Fits most faucets with 15/16 in. -27 or 55/64 in. -27 housings
A distinctive flow pattern that “will add elegance to any bathroom”
Dual-thread system accommodates both male and female faucet threads

PROS/CONS COMMENTS

“Amazing!”
“Saves so much water”
“Affordable and easy to use”
“Five star rating”
Possible con for this: Make sure it fits your faucet housing

ADDITIONAL INFORMATION

#2 :: NEOPERL^®MIKADO ULTIMATE LOW FLOW

The NEOPERL^® Mikado Ultimate Low Flow also provides a 0.35 GPM flow rate, and is thus our #2 choice. Like the insert above, it also “turns the water stream into an eye-catcher when washing your hands. Its extraordinary, grid-like spray pattern – formed by individual water jets – creates a surprisingly clear and harmonious effect in its delicate design idiom. Given that owing to its form the spray loses density as it moves downwards, the force of the jets ranges from pleasantly soft to vigorously massaging. The visual effects of the water stream turn washing your hands into an enchanting experience.” It is also lead free and complies with the reduction of lead in the Drinking Water Act.

KEY FEATURES

Impressive .35 GPM flow rate
Beautiful and unique flow pattern
Pressure compensating design
Lead free
Variable density spray providing soft to vigorous water
Dual-thread system accommodates both male and female faucet threads

PROS/CONS COMMENTS

“Extremely PLEASED!”
“Nice flow and pattern”
“Cool, but very low flow”
“Five Stars”
“Saves Water but Still an Effective Faucet”

ADDITIONAL INFORMATION

#3 :: NIAGARA 0.5 GPM LOW-FLOW FAUCET AERATOR

The Niagara Conservation 0.5 GPM Low-flow Dual-thread Faucet Aerator is our #3 choice because it has a 0.5 GPM flow rate, is affordable, and comes from Niagara Conservation, a very reputable and environmentally conscientious company with a long history (started in 1977) of quality products. It offers high pressure through an even “needle spray” pattern and flow-control construction using long-lasting Celcon plastic. The innovative dual-thread system also accommodates both male and female faucet threads/applications. The company states it saves up to 77% more water and energy than the standard 2.2 GPM aerator, which is approximately 18,615 gallons of water per year. The company is also a California Energy Commission Certified Member of the Water-Smart family of products. Sold on Amazon in packs of 6 for $9.95 and with free shipping.

KEY FEATURES

.5 GPM flow rate saves up to 77% of water
High-pressure “needle spray” pattern
Long-lasting Celcon plastic
Dual-thread system accommodates both male and female faucet threads
Comes in packs of 6 so you can upgrade your whole house affordably

PROS/CONS COMMENTS

“Extremely PLEASED!”
“Nice flow and pattern”
“Cool, but very low flow”
“Five Stars”
“Saves Water but Still an Effective Faucet”
“We use these in our faucets and are very happy” – Community Pioneer Jae

#4 :: NEOPERL MULTIPLE LAMINAR STREAM BATHROOM FAUCET AERATOR

The NEOPERL^® Multiple Laminar Stream Bathroom Faucet Aerator has a flow rate of 0.5 GPM and is pressure compensating. This was our #4 choice because the NEOPERL company does not have the same impressive history of sustainability that Niagara does. Other than that though, it is pretty much tied with our #3 choice. The mini-shower spray pattern it provided may also be preferable for some, it offers full coverage and an even and consistent flow without quite as much force as the “needle spray” of the Niagara.

KEY FEATURES

Flow rate of 0.5 GPM
Pressure compensating
Provides a non-splashing, non-aerated spray
Medium-pressure (less than “needle spray”) mini-shower spray pattern
Dual-thread system accommodates both male and female faucet threads

PROS/CONS COMMENTS

“I actually like these…fits inside existing spouts.”
“Good Product and Purchase!!!”
“Perfect”
“Four Stars”
“Water-money savings”

ADDITIONAL INFORMATION