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Best Under sink water filter with faucet

No one knows what is happening to your water once it leaves the municipal treatment plant or any filtration facility. Water can get contaminated in the pipes, and the only way to make sure the water you consume or use for cooking is safe is by installing a water filter. If you want to provide your family with clean water through a faucet install an under sink water filter with a faucet. 

Under sink water filter with faucet

In this article find out an unbiased review of the best under sink water filter with faucet and read a guide on how to choose the right one here.

What is under sink water filter with faucet

Under sink water filter with faucet is water filtration system that is installed under the kitchen sink to transform contaminated tap into clean safe water for human consumption.

The system includes a dedicated faucet that is installed on the countertop so requires drilling of the hole.

The filter is connected under the kitchen to the cold water line using a diverter and sends filtered to the separate faucet installed on the countertop.

At the sink top, you will have two faucets one for filtered water and the other one for the unfiltered water

Under sink water filter is also called under counter water filter or under cabinet water filter.

Under sink water filter with faucet comparisons

 NameImageContaminantsReplacement filterWhere to buy
1ApecUndersink water filtersbad odor, colors, chlorine, taste, particles, dust, and rust
Filter life: 1000 capacity
Amazon
2Culligan US-EZunder sink water filter with dedicated faucetparticulates class III, chloride and removes bad taste and odor
Filter life:3000 gallons
Amazon
3Aquasanalead, mercury, pesticides, pharmaceuticals, chlorine taste, odor, particulates, cryptosporidium, asbestos, herbicides, detergents, pharmaceuticals, and other volatile organic chemicals
Filter life: 800 gallons
Amazon
4Doulton W9330958 SuperCarb Under Sink Filter SystemDoulton under sink filterfine particulate matter, bacteria, cysts, turbidity,  pathogenic bacteria, hydrogen sulfide, lead,chlorine, taste, odor and organic compounds.Amazon
5Whirlpool WHADUS5Convectionalchlorine taste and odor, sediment, cysts, lead, and chemicals.
Filter life: 6 months
Amazon
6Frizzlife under sink water filterlead, heavy metals, chlorine, chromium, mercury, rust, volatile organic compound, carcinogens, turbidity, odor and bad taste.Amazon
7Ecosoft 3 Stage Under Sink Water Purifier Filtration System  chlorine taste and odor, salinity, lead, iron, manganese, tannins, dust, rust, and sedimentAmazon
8Brondell H2O+ Coral UC300 chlorine taste and odor, heavy metals (such as lead and mercury), industrial chemicals (like benzene), total dissolved solids, volatile organic chemicals Amazon
9iSpring US31 3-Stage Under Sink dust, particles, dust, and dirt, cloudiness, chlorine taste, and odorAmazon
10Watts Premier WP500313 2-Stage Undercounter simazine, atrazine, benzene, trihalomethanes (TTHM), lindane, xylenes, entamoeba cryptosporidium, giardia, chlorine taste, and odorAmazon
113M Aqua-Pure Under Sink Water Filtration System  particulate, rust, lead, VOCs, MTBE, parasitic protozoan cysts, chlorine taste, and odor.Amazon
12Watts WP2BVC Premier Bacteria, Virus, & Cysts
chlorine taste and odor
Amazon
13Watts Premier 500320 with Ultravioletlead, cysts, particulate matter, chlorine taste, and odorsAmazon
14New Wave Enviro-30008 chlorine, trihalomethanes, organic and inorganic arsenic, mercury, lead, pesticides, and herbicides.Amazon

How does under sink water filter with a faucet work

undersink water filtersb2017

The cold water (Contaminated water) from point A sends water to the filter at point B where the filter is mounted at the bottom of the sink.

Then delivers clean water to the user through a particular faucet installed at the top of the sink at point C

The process is under high pressure when you open the filter faucet mounted on top of the sink water flows from the entry point to the filter then out the filter faucet.

Some under sink water filters use the reverse osmosis method to treat your water while others use a multi-stage filtration process.

Advantages of Under sink water filter with faucet

  • Filters or Cartridges last longer since you filter only required water for drinking and cooking
  • Multi-stage filtration process removes different impurities present in water thus giving safe water for drinking
  • Saves time since you get filtered water just by turning on the filter faucet
  • Compared to another filter like pitchers filters it filters 1,000 gallon of water where else pitches filters 20 gallons.
  • Don’t take counter top space of your sink.
  • It does not waste any water like inline under sink water filter and under sink reverse osmosis system

Disadvantages of Under sink water filter with faucet

  • Requires qualified personnel to install
  • You need to add another faucet for filtration
  • You need to drill an extra hole to fix the filter faucet
  • They take up under sink space   

Best under sink water filters with faucet are:

  1. APEC WFS 1000
  2. Culligan US-EZ-1 EZ Undersink Drinking Water Filtration System
  3. Aquasana 3-Stage Under Sink Water Filter System
  4. Doulton W9330958 SuperCarb Under Sink Filter System
  5. Frizzlife under sink water filter
  6. Whirlpool WHADUS5 Under Sink Water Filtration System 
  7. Ecosoft 3 Stage Under Sink Water Purifier Filtration System  
  8. Brondell H2O+ Coral UC300 Three-Stage Undercounter Water Filtration System
  9. iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System
  10. Watts Premier WP500313 2-Stage Undercounter 
  11. 3M Aqua-Pure Under Sink Water Filtration System 
  12. Watts WP2BVC Premier Two-Stage Microbiological Purifier Water Filtration System
  13. Watts Premier 500320 3-Stage Undercounter Drinking Water Filter with Ultraviolet
  14. New Wave Enviro-30008 10 Stage Unit Undersink-Mounted Water Filter

Best under sink water filter with faucet reviews

  1. APEC WFS 1000

Summary 

  • Contaminants removed: bad odor, colors, chlorine, taste, particles, dust, and rust
  • Filter life – 12 months
  • Replacement filter – APEC FILTER Replacement Pre-Filter 
  • Filter Stages-3 stages 

APEC WFS-1000 Purifies water in 3 stages:

Stage 1: Polypropylene sediment filter which removes particles, dust, and rust

stage 2: Premium extruded carbon block which eliminates bad odor, colors, chlorine, and taste

Stage 3: Premium extruded carbon block the same stage is repeated so as to provide excellent filtered water

The three filters last over 12 months and deliver filtered water directly to your tap water. There is no tank needed.

You can buy a replacement filter using the link below

This system does not waste water or requires regular filter flushing meaning all water that goes into the system goes straight to your cup. 

It is NSF certified that guarantees it provides quality water free from contaminants

Used to treat tap and well water

It has a one-year satisfaction guarantee with lifetime support by a certified WQA water specialist based in Ca

In pack contains a chrome faucet that is 100% lead-free and JG food grading tubing approved by PLUS NSF and FDA

  1. Culligan US-EZ-1 EZ Undersink Drinking Water Filtration System

Summary 

  • Contaminants removed: particulates class III, chloride and remove bad taste and odor
  • Filter life – 3000 gallons/ 12 months
  • Replacement filter – RC-EZ-1 filter cartridge
  • Filter Stages-1 stages 

Includes dedicated faucet that can be installed in most sinks providing cleaner filtered water for cooking or drinking

 It comes with an RC-EZ-1 filter cartridge effectively removing contaminants such as particulates class III, chloride and removes bad taste and odor from water.

The included RC-EZ-1 filter cartridge is tested and certified by NSF for the reduction of Chlorine Taste and Odor and Nominal Particulate Class III.

With quick-connect fittings, twist on and twist off makes it easier to change the filter of the Culligan US-EZ-1 EZ Undersink Drinking Water Filtration System.

Also, the quick-connect fittings ensure the filter stays in place until it needs to be changed, so you don’t need to worry about hidden leaks or spills

The cartridge can filter up to 3,000 gallons of water or can last for 12 months.

It has a filter change sticker that reminds you of the time to change the filter.

Included in the package is a Filter head with a built-in bracket, US-EZ-1 Water filter cartridge, mounting screws, water supply adapter, chrome, Lead-free faucet and fittings, 1/4-inch plastic tubing, cartridge change, and reminder sticker.

  1. Aquasana 3-Stage Under Sink Water Filter System

  • Contaminants removed: rust, sediment,  silt, pharmaceuticals, herbicides, pesticide, other volatile organic chemicals, heavy metals (lead and mercury), chloramines (the byproduct of chlorine and ammonia used in water disinfection), giardia and cryptosporidium.
  • Filter life – 800 gallons
  • Replacement filter – Aquasana AQ-5300R 3-Stage Under Sink Water Filter Replacement Cartridges
  • Filter Stages-3 stages 

The Aquasana water filter cleans water in 3-stage;

Stage 1: 20 Micron pre-filter catches rust, sediment, and silt. 

Stage 2: Activated Carbon Reduces organic chemicals (pharmaceuticals, herbicides, pesticides), other volatile organic chemicals, improves the taste of your water, and removes chlorine odor.

Stage 3: Catalytic Carbon removes heavy metals (lead and mercury), chloramines (the byproduct of chlorine and ammonia used in water disinfection), giardia, and cryptosporidium.

The full system is certified by NSF certified to standards 42, 53, 401 +P473 to remove contaminants such as  lead, mercury, pesticides, pharmaceuticals, chlorine taste, odor, particulates, cryptosporidium, asbestos, herbicides, detergents, pharmaceuticals, and other volatile organic chemicals

No water is wasted while using this system and no harmful contaminants are added back into your water.

Sediment filters help reduce clogging, therefore increases capacity. The sediment filter gives 800 gallons of clean water.

It comes with a dedicated faucet made of metal and lead-free. The faucet is brushed nickel, bronze, or chrome so you can choose that best to match your kitchen decor.

Filters are easy to change no need to disconnect hoses or water lines, filter housing easily twists off

It has an indicator that alerts when it is time to change your filter.

You can purchase a replacement filter using the link below

Aquasana AQ-5300R 3-Stage Under Sink Water Filter Replacement Cartridges

  1. Doulton W9330958 SuperCarb Under Sink Filter System

  • Contaminants removed: fine particulate matter, bacteria, cysts, turbidity,  pathogenic bacteria, hydrogen sulfide, lead,chlorine, taste, odor and organic compounds.
  • Filter life – N/A
  • Replacement filter – each stage filter sold separately
  • Filter Stages-4 stages 

The Doulton water filter is connected under the counter utilizing Doulton ceramic technology.

Each package comes with an UltraCarb Candle filter, durable plastic housing, and a faucet. It also comes with everything that is needed for a standard installation.

The whole system is NSF certified, and the faucet is CA prop 65 approved

The Doulton super carb is a four-stage system with a combination of ceramic filtration making it possible to remove bacteria, E-coli, heavy metal, fluoride, chlorine, and organic

1st stage Doulton Ultracarb ceramic which reduces fine particulate matter, bacteria, cysts, and turbidity. Doulton Ultracarb ceramic replacement filter

2nd stage Doulton® ceramic filter candles remove suspended solids, pathogenic bacteria, hydrogen sulfide, and lead. Doulton® ceramic filter candles replacement filter

3rd stage activated carbon block removes chlorine, taste, odor, and organic compounds.

4th stage Ion exchange resin that reduces Lead and other heavy metals.

  1. Frizzlife under sink water filter

  • Contaminants removed: lead, heavy metals, chlorine, chromium, mercury, rust, volatile organic compound, carcinogens, turbidity, odor and bad taste.
  • Filter life – N/A
  • Replacement filter – Frizzlife FZ-2 Replacement Filter Cartridge 
  • Filter Stages-2 stages 

The Frizzlife Under Sink Water Filter is a two-stage water filtration system that helps reduce lead, heavy metals, chlorine, chromium, mercury, rust, volatile organic compound, carcinogens, turbidity, odor, and bad taste.

The two-stages include

  • Sediment filter cartridge with 5-micron precision reduces particles such as sand, silt, and rust from the water.
  • Block carbon filter cartridge with 0.5-micron precision that reduces 99.99% of LEAD, CHLORINE, ODOR, and PARTICLES from the water.

It comes with 3/8″ direct connect hoses that fit standard 3/8″ feedwater valves under US kitchen sinks. It also comes with 3/8″ to 1/2″ converter fittings allowing the system to fit directly to the existing both 1/2″ and 3/8″ cold water lines and faucet under your sink.

The system installation requires no plumbing but utilizes a quick-change twist design which makes installation easy and takes fewer minutes.

The filter cap is designed with a BUILT-IN shut-off valve. You do not need to shut off the water supply whenever you are replacing the cartridge.

During filter replacement, you only need to replace the filter cartridge and not the whole house.

Replacement cartridge is available using the link below

Frizzlife FZ-2 Replacement Filter Cartridge For MP99, MK99 Under Sink Water Filter

It has a flow rate of 2.0GPM @40 psi and the cartridge lasts 2 years or 1,600 gallons of water.

It comes with a lead-free stainless faucet with quick fittings.

  1. Whirlpool WHADUS5 Under Sink Water Filtration System 

  • Contaminants removed: chlorine taste and odor, sediment, cysts, lead, and chemicals.
  • Filter life – 6 months
  • Replacement filter – N/A
  • Filter Stages-2 stages 

The Whirlpool WHADUS5 is certified to reduce numerous contaminants including chlorine taste and odor, sediment, cysts, lead, and chemicals.

It features EZ-Change Indicator Light that notifies you when it is time to change filters.

The filter lasts for 6-months. Buy replacement filter below

Whirlpool WHEEDF Dual Stage Replacement Pre/Post Water Filters | Fits WHADUS5 & WHED20 Filtration Systems | 1 Set, Pack of 2, Grey, Gray-

  1. Ecosoft 3 Stage Under Sink Water Purifier Filtration System  

Ecosoft is a 3-stage water filtration system. The 3-stages include:

1-stage: 5-micron polypropylene sediment filter which removes dust, rust, and sediment larger than 5-micron

2-stage: ecomix D531 filters which reduce chlorine byproduct, salinity, lead, iron, manganese, and tannins.

3-stage: activated coconut-based carbon shell filter that helps remove chlorine taste and odor.

The filter lasts for 6 months or 400 gallons. You can buy a replacement filter using the link below.

Ecosoft 3-Stage Under Sink Water Filter Replacements 

  1. Brondell H2O+ Coral UC300 Three-Stage Undercounter Water Filtration System

Brondell’s is a three-stage water filtration system that consists of a sediment filter, pre-carbon filter, and carbon block filter.

3 stage filtration helps reduce contaminants such as chlorine taste and odor, heavy metals (such as lead and mercury), industrial chemicals (like benzene), total dissolved solids, volatile organic chemicals 

The filters are designed to last for 12 months with a 600-gallon capacity. You don’t have to worry when it’s the right time to change the filter the system has an integrated LED filter change indicator that reminds you when to replace your filters.

You can buy a replacement filter using the link below

Brondell H2O+ Coral Three-Stage Carbon Block Replacement Water Filter Set (UF-35)

Features a Twist & Seal system that makes changing the water filter quickly and two “quick connect” hose connections make installation easy and fast. It also has a double O-ring filter seal to prevent leaks.

To guarantee quality Brondell filter system is Gold Seal-certified by the Water Quality Association for trusted performance and is certified for NSF/ANSI standards 42, 53, and 372 and CSA B483.1 for Lead. It also offers a one-year warranty.

It comes with a chrome kitchen faucet with an LED filter indicator.

Brondell is available in a single stage under counter water filtration system

Brondell H2O+ Coral UC300 single -Stage Undercounter Water Filtration System

  1. iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System

iSpring US31 is a 3-stage under sink water filtration system. The three stages include PP sediment filtration, dual CTO carbon filtration, and the 2nd layer contains unique CTO filtration.

The filter helps remove contaminants such as

  • Sediment help remove dust, particles, dust, and dirt
  • CTO carbon filtration remove cloudiness, chlorine taste, and odor
  • CTO filtration removes further cloudiness, chlorine taste, and odor

It comes with European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing.

To guarantee water quality, material safety, and structural integrity the system is made to comply strictly with FDA standards and tested by independent third parties against NSF/ANSI standards (42, 53, and 61).

It is recommended to replace the filter every 6 to 12 months. You can buy a replacement filter using the link below

iSpring F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White

  1. Watts Premier WP500313 2-Stage Undercounter 

Watts is a 2-stage under-counter water filtration system. The filter includes five-micron sediment and a one-micron carbon block filter

The filter helps remove contaminants such as simazine, atrazine, benzene, trihalomethanes (TTHM), lindane, xylenes, entamoeba cryptosporidium, giardia, chlorine taste, and odor from the water

Filter last after filtering 600 gallons. Buy replacement filter here

Watts Premier Lead, Cyst, VOC Carbon Block Two-Stage Replacement, 1 Count(Pack of 1), Filter Pack-

Watts offers more under sink water filtration systems including

Watts Premier Pure UF-3, 3-Stage Water Filtration System, 531130

This is watts Premier 3 stage water filtration system. The stages include:

  • 5-micron Sediment filter
  • 0.5-micron carbon block filter-remove lead and volatile organic compounds
  • Ultrafiltration membrane

The system is WQA Certified to NSF/ANSI Standard 42 and 53

It is recommended to replace Sediment and Carbon Block Filters every 6 months, and Hollow-Fiber Membrane once a year

Buy replacement filter below

Watts Premier 560039 UF-3 Ultra Filtration, 5-Filter Annual Water Filter Replacement Pack

Watts WP2BVC Premier Two-Stage Microbiological Purifier Water Filtration System -best for well water

Under sink For well water

Best under sink water filter for well water

  1. 3M Aqua-Pure Under Sink Water Filtration System  best for well water/ non-chlorinated

Summary 

  • Contaminants removed: particulate, rust, lead, VOCs, MTBE, parasitic protozoan cysts, chlorine taste, and odor.
  • Filter life – 625 gallons/ 2366 liters/6 months
  • Replacement filter – 3M Aqua-Pure Under Sink Replacement Water Filter AP-DW80/90
  • Filter Stages-2 stages 
  • Best for well and municipal water
  • Connects to a polished chrome faucet

The 3M Aqua-Pure Under Sink Water Filtration System uses Advanced dual-stage carbon-block filtration which is NSF certified to reduce contaminants such as particulate, rust, lead, VOCs, MTBE, parasitic protozoan cysts, chlorine taste, and odor.

The cartridge has a sanitary twist-off design which makes it easier and faster to change the 3M Aqua-Pure cartridge.

This system is designed with a built-in Automatic shutoff meter that automatically shuts -off when the system filters 625 gallons/ 2366 liters.

The automatic shutoff meter act as a reminder when to change cartridges.

It connects under the kitchen sink on the primary cold water line and the cartridge is replaced after 6-months.

You can purchase Aqua replacement filter using the link below

3M Aqua-Pure Under Sink Replacement Water Filter AP-DW80/90

In pack contains installation hardware, faucet, and pipe connections for easy installation

It is designed for effective use in both chlorinated (municipal) and non-chlorinated (well water) systems.

The filter change is determined by actual water use and incoming water quality.

The package includes everything needed for installations such as a polished chrome dedicated faucet, quick-connect fittings, an attached mounting bracket, shroud, and tubing.

Also, included is a built-in shut-off valve that allows for changing the Sanitary Quick Change filters without shutting off the water supply.

  1. Watts WP2BVC Premier Two-Stage Microbiological Purifier Water Filtration System

Watts WP2BVC Premier is a 2-stage under-counter water filtration system.

The system is Independently Tested by Bio-Vir Labs and Patented Microbiological Interceptor Technology that help remove Bacteria, Virus, & Cysts from your drinking water. This makes WP-2 perfect for campers, RVs, and houses on a private well

It is NSF Tested & Certified to reduce chlorine taste and odor from water.

With UV light 

Under sink water filter with UV light
  1. Watts Premier 500320 3-Stage Undercounter Drinking Water Filter with Ultraviolet

This Watts Premier 3 stage under a counter system with Ultraviolet. 3-stages include sediment filter, carbon block, and ultraviolet

The system helps reduce lead, cysts, particulate matter, chlorine taste, and odors

10 stage 
10 stage water filter under sink
  1. New Wave Enviro-30008 10 Stage Unit Undersink-Mounted Water Filter

The New Wave Enviro is a 10-stage water filtration system.

The 10 stage system eliminates harmful contaminants such as chlorine, trihalomethanes, organic and inorganic arsenic, mercury, lead, pesticides, and herbicides.

Filters are supposed to be replaced every 12 months or 1,500 gallons.

Dual stage
Dual stage under sink drinking water filter

Dual-stage is a two-stage under-sink water filter.

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