Top 10 Whole House Reverse Osmosis Water Filtration System – Replacement Under-Sink Water Filters

As an Amazon Associate I earn from qualifying purchases.

1. Reverse Osmosis Revolution


3/4" port with 2 valves and extra 1 year filter supply 2 sets, 6 pcs, Whole House 3-Stage Water Filtration System

Reverse Osmosis Revolution #ad - Build in USA. You need to change filters every 4-6 months. Connection: 3/4" thread. This filter also removes cloudiness, colors and unpleasant tastes.

Taste improvement. Included 2 extra sets of filters as a replacement. 3rd stage: 10" premium cto carbon block filter removes chlorine, VOCs volatile organic compounds, including insecticides, pesticides and industrial solvent.11st stage: premium quick-connect 5 micron sediment filter. Dust, silt, dirt, sand, rust and scale particles are trapped here in a filter which also extends the life of the system.2nd stage: premium 10" gac granular activated carbon filter removes chlorine, offensive odors, radon, VOCs volatile organic compounds and other common chemicals.
BrandReverse Osmosis Revolution #ad
ManufacturerReverse Osmosis Revolution #ad
Part NumberWHF-34V2
Warranty1 year for hardware. Filters - 1 month.

2. iSpring


ISpring WGB32B 3-Stage Whole House Water Filtration System w/ 20-Inch Big Blue Sediment and Carbon Block Filters

iSpring #ad - Top-notch quality: the first stage high capacity polypropylene sediment filter is able to achieve filtration down to 5 microns. Protect your family and household appliance from sediment, rust, chlorine, herbicides, pesticides, bad tasting water! our system removes up to 99% of chlorine from water as well as up to 95% of sediment, VOCs, industrial solvents, and More: Say goodbye to smelly, and various other contaminants.

Local support team. This system is installed at the main water supply line in order to treat all the water in your home. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. The system has a capacity of 100, 000 gallons of water, enough to supply a family of four with clean water for a full year. Peace of mind customer service: register online to activate your extended manufacturer warranty and life-time free tech support from U.

S. The second and third stage ctO Carbon Block filters are made of high quality coconut shell carbon for maximum filtration efficiency and filter life. With 1” npt inlet / outlet and Big Blue 20” x 4. 5” filter cartridges, the system has minimum impact on water flow up to 15 GPM and requires minimum maintenance. Diy installation and maintenance: refer to our manual and our helpful youtube videos for easy DIY installation.
BrandiSpring #ad
ManufactureriSpring #ad
Height27.75 Inches
Length24.25 Inches
Weight40 Pounds
Width7.75 Inches
Part NumberWKB32B

3. Aquasure


75 GPD RO System & Dual Purpose Sediment/GAC Pre-Filter 64,000 Grains, Aquasure Whole House Water Filtration Bundle w/Water Softener

Aquasure #ad - Perfect for homes with 4 to 5 bathrooms and up to 6 family members, who desires softened water and clean, pure drinking water for the whole family.

Exceptional performance & high efficient Aquatrol control head and Aquasure reverse osmosis membrane help save water and reduce overall maintenance cost. Rated to treat 64, 000 grains of hardness by removing skin damaging hard minerals like iron and magnesium that clog up the skin pore and cause irritation. Reduces water bill by removing particles and chemicals at the water source and prolong the life of household appliances. Constructed of high strength, premium-quality materials with built-in safety features that ensure your home is protected even during system downtime.
BrandAquasure #ad
ManufacturerAquasure #ad
Height62 Inches
Length13 Inches
Weight149 Pounds
Width13 Inches
Part NumberAS-WHF64D

4. 3M Aqua-Pure


Chlorine Taste and Odor, and Scale, Reduces Sediment, 3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP904

3M Aqua-Pure #ad - Flow rate: 1” inlet and outlet connections to help a plumbing professional with easy installation and peak flow rates up to 20 gpm to meet the water pressure demands of most homes. 100, 000 gallon capacity: replacement cartridge has an activated carbon filter with nominal heavy duty particulate reduction rating of 5 micronss and a 100, 000 gallon capacity at high flow rates of 10 gpm and even at intermittent peak flow rates of 20 gpm.

Corrosion resistant: 304 stainless steel head can be installed on existing copper pipes in the home. Clearly great water: this whole house water filter reduces sediment build-up, chlorine taste and odor as well as scale – helping to increase the life of hot water heaters and appliances dishwashers, clothes washers,  etc. Nsf standard 42 certified: tested by one of the world’s most respected independent certification organizations that helps protect the world’s food, water, consumer product and environment.

Easy to replace: sanitary quick change sqc design allows for fast and easy change-outs of the 3M Aqua-Pure AP917HD-S Replacement Water Filter Cartridge without having to contact the filter media or the need for a filter wrench. It consists of a corrosion resistant material that provides long service life. Ideal for larger homes and is effective with both chlorinated municipal and non-chlorinated well water systems. Fitting type: NPT Female.
Brand3M Aqua-Pure #ad
Manufacturer3M #ad
Height4.5 Inches
Length25.2 Inches
Weight10.35 Pounds
Width4.5 Inches
Part Number5621104

5. iSpring


Pressure Gauge, iSpring RCS5T 500 GPD Grade Commercial Tankless Reverse Osmosis RO Water Filter System with 1:1 Drain Ratio

iSpring #ad - Great capacity: advanced dual-flow 500gpd membrane saves 60% of water, Labs, salons, with LOW WASTE 1: 1 drain to clean water ratio. Built in booster pump increases the production of purified water by raising the water pressure and maximizes RO production rate to the optimal level for the reverse osmosis process.

Minimum feed water pressure psi:35. Features: come with sliver chrome drinking water faucet with 360° free swivel and Easy to Read Water Pressure Gauge. 5th stage post carbon filter removes chlorine, and odors to improve the quality of your drinking water. Clear see-through 1st stage housing makes filter inspection a snap. Easy-to-install and replace filter: typically, in a couple of hours with industry-leading help just a phone call away with well-organized instructions and videos.

2nd stage gac filter effectively adsorb free chlorine, pesticide residues & other harmful substances. 3rd stage carbon block Filter removes any residual chlorine, smells, tastes, sand and dirt. Great for light commercial in Restaurants, and Offices all benefit in their ways from high-quality RO water. High efficiency booster pump: no worries for low water pressure. 4th stage dual-flow ro Membrane removes bacteria, disinfection byproducts, humus, discoloration.
BrandiSpring #ad
ManufactureriSpring #ad
Height18 Inches
Length14 Inches
Weight31.44 Pounds
Width11 Inches
Part NumberRCS5T-EU
Warranty30 day warranty against manufacturer defects

6. APEC Water Systems


APEC Top Tier Supreme Certified Alkaline Mineral pH+ High Output 90 GPD 6-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System ULTIMATE RO-PH90

APEC Water Systems #ad - Ph enhanced: add 100% us-made high-purity calcium carbonate to effectively raise pH in the water for those who desire alkaline water. Supreme quality: built with super long-lasting 100% us made filters, RO-PH90 is the most durable system in the industry that lasts for decades.

High performance: guaranteed to remove up to 99% of contaminants such as chlorine, time and hassle of buying costly, great tasting water right at home. Lifetime support: provides you the ultimate satisfaction and peace of mind with our lifetime support and 2 year manufacturer warranty with registration. Wqa certified: ro-ph90 is tested and certified by wqa to remove up to 99% of contaminants including arsenic, fluoride, chlorine, lead, heavy metals and 1000+ contaminants. Equipped with premium faucet & parts: comes with 100% metal, 100% lead-free luxury designer faucet, plus JG Food grade tubing to provide safe, contamination-free pure water.

The original, top-notch JG Quick Connect fittings for easy and secure leak-seal. Save money, taste, clean, odor, arsenic, nitrates, heavy metals and 1000+ contaminants. Provides unlimited ultra-fresh, as well as toxic fluoride, VOCs, lead, bottled water. System is designed, engineered and assembled in USA to guarantee water safety & your health.
BrandAPEC Water Systems #ad
ManufacturerAPEC Water Systems #ad
Height18 Inches
Length7 Inches
Weight25 Pounds
Width15 Inches
Part NumberRO-PH90

7. iSpring


ISpring RCC7AK, White, NSF Certified, 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization-Natural pH

iSpring #ad - 0 or below. Transparent 1st stage housing for easy visual inspection. Features: beautiful european-style kitchen faucet. For leak-free installation, well-organized written instructions, backed by clear, instructional videos, simply push tubing ½ inch deep into quick-fitting connectors and lock; no threading pipes needed.1 rated reverse osmosis systems in the usa backed by ispring extended manufacturer upon registration and lifetime personalized support from GA, USA, this water filter is to deliver endless bottled quality drinking water right in your home for many years to come, combined with premium quality components, eliminating plastic bottles.

Ultra fine ro filter to remove contaminants down to 0 Easy do it yourself installation: the water purifier is designed for do-it-yourself installation and all necessary parts for installation are included, and access to iSpring unparalleled technical support. The entire alkaline water filter fits nicely under a standard kitchen sink. Three extra long life pre-filters to remove large contaminants and protect RO membrane. As a result, a standard 5 stage RO system produces slightly acidic water with a pH of 7. Benefits: the ispring rcc7ak water softener includes an additional sixth stage - an alkaline remineralization filter which restores healthy minerals and produces a balanced alkalinity, which gives your water a more natural taste than regular 5 stage RO water filter; the RO membrane removes not only harmful pollutants but also a few helpful minerals.

The end result is great-tasting bottled-water quality. Certified to nsf/ansi 58, asbestos, 000 harmful contaminants like chlorine, lead removes up to 98%, pure and healthy drinking water by removing up to 99% of over 1, calcium, 6-Stage Alkaline Remineralization Layered Filtration: Exclusively designed to restore the natural alkalinity and mineral balance of water; this reliable and ultra-safe Reverse Osmosis RO water filtration system converts your water into clean, fluoride, arsenic, sodium and more.
BrandiSpring #ad
ManufactureriSpring #ad
Height18 Inches
Length15 Inches
Width8 Inches
Part NumberRCC7AK

8. APEC Water Systems


APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System

APEC Water Systems #ad - Premium long-lasting filters used to treat tap water, well water. Only technology to remove up to 99% of contaminants such as chlorine, nitrates, taste, arsenic, odor, as well as toxic fluoride, VOCs, lead, heavy metals and 1000+ contaminants.

System comes with all parts and industry's best instructions and videos for an easy DIY experience. High quality leak-free quick connect fittings require no extra lock clips to seal leak, and does not rely on water leak detector to protect your home like other brands. System comes with 100% lead-free designer faucet, plus Certified JG Food grade tubing and parts to provide safe, contamination-free pure water. Pipe size: 1/4 inches. Max total dissolved Solids - 2000 ppm.

Provide unlimited clean, refreshing crisp tasting water superior to bottled water. Wqa certified system. America's no. 1 rated water filter brand with 20 years of success guaranteeing trouble free, noise-free system for long lasting, dependable, pure drinking water.2 year extended manufacturer warranty with registration. Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health. Feed water pressure 40-85 psi.
BrandAPEC Water Systems #ad
ManufacturerAPEC Water Systems #ad
Height0.03 Inches
Length0.04 Inches
Width0.04 Inches
Part NumberROES-50-A
Warranty1 Year APEC

9. iSpring


ISpring ED2000 Whole House Electronic Descaler Water Conditioner, Alternative Water Softener

iSpring #ad - Works on any pipe, even PEX and PVC. Maintenance-free. Solves hard water problems without the need for chemicals, or maintenance, salt, while keeping healthy minerals in the water by preventing scale deposits from forming and allowing existing scale to break down.

Unlike salt water softeners, ED2000 does not change the chemistry of water. Saves energy and extends the life of your appliances. No plumbing modifications required. 1-year money-back and lifetime tech support from iSpring. Designed for very hard water areas 10-19 grains per gallon. Reduces energy consumption with an average one year payback period. Descales your entire water system and prevents scale buildup in pipes. Great for your home and the environment, individuals on salt-restricted diets, and those looking for healthier skin and hair.
BrandiSpring #ad
ManufactureriSpring Water Systems, LLC #ad
Height2 Inches
Length7 Inches
Width3.5 Inches
Part NumberED2000

10. Express Water


Express Water UV Reverse Osmosis Water Filtration System – 11 Stage UV Water Filter with Faucet and Tank – Under Sink Water Filter with Alkaline Filter for added Essential Minerals 100 GDP

Express Water #ad - Express water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system. Under sink water filter: don’t waste money on professional installation. Alkaline water filter: alkaline filtration System with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your body needs right in your water.

On demand support: support from experts who can answer any of your questions about your new water filter. Quality guaranteed: rest easy with our 1-year warranty on all Express Water Reverse Osmosis Water Systems. Included components: ultraviolet Sterilizer Uv Bulb 4 Gallon Water Storage Tank Tank Valve & More. Leak detection: each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture. Coli, bacteria, viruses, microorganisms, and more from your drinking water.

Under sink water filter system: no need to mess with refilling or activating your Alkaline UV water filter system, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water. Reverse osmosis water filter: experience what water should taste like with the Express Water reverse osmosis water filtration system removing up to 99. 99% of lead, nitrates, calcium, Fluoride, Chlorine, Bacteria, Arsenic, and more. Uv water purification system: powerful UV Sterilization eliminates coliform, E.
BrandExpress Water #ad
ManufacturerExpress Water Incorporated #ad
Height5 inches
Length15 inches
Width14 inches
Part NumberROALKUV10M