Reverse Osmosis (RO) Water Filter Systems

Reverse Osmosis

An under sink reverse osmosis water filter systems is installed under your sink, leaving you with a small separate faucet from which you can dispense the cleanest, purified water. This is ideal for homes where countertop space is scarce, sleek appearances are a must, and convenience is key.

Keep in mind that an under sink reverse osmosis water system is a bit harder to install since they connect to the under sink plumbing rather than directly to your faucet. Be prepared to work with minor connections with an under sink reverse osmosis water system. Read More

    • Coway P-07QL Countertop Reverse Osmosis Water Filter System
    • Coway P-07QL Countertop Reverse Osmosis Water Filter System

      Part Number: P-07QL
      • Reservoir Capacity: 1.7 gallons
      • Filtration Capacity: 30 gpd
      • Sealed water reservoir to prevent contamination of your water
      • Requires no electricity
      • Fits under your kitchen cupboards
    • Watts WQT4RO11-50PT QT Quick Twist Reverse Osmosis Drinking Water System 50 gpd
    • Watts WQT4RO11-50PT QT Quick Twist Reverse Osmosis Drinking Water System 50 gpd

      Part Number: WQT4RO11-50PT
      • Quick change technology makes filter changes far faster than traditional sump systems! Filters are quick and easy to change with just a twist
      • Flow shuts off when cartridges are removed
      • Standard chrome air gap faucet
      • Assembled in the USA
      • Space-saving plastic holding tank
    • Watts WQC4RO11-50 Kwik Change Reverse Osmosis System 50 gpd
    • Watts WQC4RO11-50 Kwik Change Reverse Osmosis System 50 gpd

      Part Number: WQC4RO11-50MT
      • Quick change RO systems significantly reduce filter change time! Change filters with a single 1/4 turn twist! Much quicker than traditional sump systems.
      • Quickly compare all Watts Quick Change Reverse Osmosis Systems
      • 4.4 gal heavy-duty steel tank
      • Simple to install (see our videos)
      • 11'' Filters provide up to 50 gal of RO filtered water per day (serves up to 4 people).
      • This system is independently CERTIFIED by the WQA so you know you can trust it.
      • Replacement Filters do not fit the Watts Premier RO-PURE RO-4 Reverse Osmosis System
    • Watts WQC4RO13 Kwik-Change Reverse Osmosis System 100 gpd
    • Watts WQC4RO13 Kwik-Change Reverse Osmosis System 100 gpd

      Part Number: WQC4RO13-100MT
      • Quick change RO systems significantly reduce filter change time! Change filters with a single 1/4 turn twist! Much quicker than traditional sump systems.
      • Quickly compare all Watts Quick Change Reverse Osmosis Systems
      • 4.4 gal heavy-duty steel tank
      • Simple to install (see our videos)
      • 13'' Filters provide up to 100 gal of RO filtered water per day.
      • This system is independently CERTIFIED by the WQA so you know you can trust it.
      • Replacement filters do not fit the Watts Premier RO-PURE RO-4 Reverse Osmosis System
    • 3M Water Factory Systems SQC PRO Reverse Osmosis System With Pump
    • 3M Water Factory Systems SQC PRO Reverse Osmosis System With Pump

      Part Number: 04-08201
      • Great for areas with low water pressure like wells
      • Consistently provides a good stream of water with high demand
      • Sanitary quick change filters make filter changes a snap
      • 10 year manufacturer's warranty
    • 3M Water Factory Systems 04-045 SQC-3-HF Reverse Osmosis System
    • 3M Water Factory Systems 04-045 SQC-3-HF Reverse Osmosis System

      Part Number: 04-045
      • Sanitary quick change system eliminates the need to handle the filter media
      • Easy to change 1/4 turn filters
      • 10 year limited manufacturer's warranty
      • NSF certified
      • Self cleansing for RO membrane
      • Powered by water line pressure, no electricity required
      • Effectively removes arsenic (pentavalent), fluoride, barium, lead, cadmium, radium 226/228, hexavalent chromium, selenium, trivalent chromium, TDS (Total Dissolved Solids), copper, turbidity, cysts, chlorine, taste and odor
    • Coway CP-07BL Reverse Osmosis Countertop Water Cooler
    • Coway CP-07BL Reverse Osmosis Countertop Water Cooler

      Part Number: CP-07BL
      • Waste water reduction system
      • Ambient and cold water on demand
      • Designed for quick maintenance and easy filter changes
      • Power saving mode controls water temperature to prevent excessive cooling
      • Removable drip tray for easy cleaning
      • Filtration Capacity: 20 gpd
    • Coway CHP-03AL Reverse Osmosis Countertop Water Cooler
    • Coway CHP-03AL Reverse Osmosis Countertop Water Cooler

      Part Number: CHP-03AL
      • Double water level controller to prevent leaks caused by overflow from the reservoir
      • Air-tight tank prevents secondary contamination of your drinking water
      • Automatic cooling temperature control protects the system from damage caused by over-cooling
      • Removable drip tray for easy cleaning
      • Dispenses hot, cold and room temperature water
      • Filtration Capacity: 20 gpd
    • Watts Premier 531411 RO-PURE RO-4 Reverse Osmosis System 50 gpd
    • Watts Premier 531411 RO-PURE RO-4 Reverse Osmosis System 50 gpd

      Part Number: 531411
      • Quick change RO systems significantly reduce filter change time! Much quicker than traditional sump systems.
      • Quickly compare all Watts Quick Change Reverse Osmosis Systems
      • 4.4 gal heavy-duty steel tank
      • Simple to install (see our videos)
      • Provides up to 50 gal of RO filtered water per day (serves up to 4 people).
      • This system is independently CERTIFIED by the WQA so you know you can trust it.
      • Replacement filters do not fit the Watts Kwik-Change reverse osmosis system
    • Coway CHP-06EL Reverse Osmosis Water Cooler
    • Coway CHP-06EL Reverse Osmosis Water Cooler

      Part Number: CHP-06EL
      • Dispenses hot, cold and room temperature water
      • Temperature and operation display on the front of the cooler
      • Child safety lock on the hot water faucet
      • Filtration Capacity: 50 gpd
    • Watts GTS-550 Five Stage Reverse Osmosis System 50 gpd
    • Watts GTS-550 Five Stage Reverse Osmosis System 50 gpd

      Part Number: GTS-550S-MT
      • 5-stage system filters down to .0001 microns
      • Stage 1: 5 micron Sediment Filter
      • Stage 2: 5 micron Carbon Block Filter
      • Stage 3: 5 micron Carbon Block Filter
      • Stage 4: 50 GPD RO Membrane
      • Stage 5: Inline GAC Postfilter
      • 1-year limited warranty
    • Pentek RO-2550 4 Stage Reverse Osmosis System 50 gpd
    • Pentek RO-2550 4 Stage Reverse Osmosis System 50 gpd

      Part Number: 161079
      • Under sink residential RO system
      • Permeate Flow Rate: 36 gpd
      • Includes chrome air gap faucet
      • Storage Tank: 2 gallon
      • One year warranty
    • Pentek RO-2550 4 Stage Reverse Osmosis System With Permeate Pump 50 gpd
    • Pentek RO-2550 4 Stage Reverse Osmosis System With Permeate Pump 50 gpd

      Part Number: 161079-ERP
      • Includes a permeate pump for improved performance
      • Under sink residential RO system
      • Permeate Flow Rate: 50 gpd
      • Includes chrome air gap faucet
      • Storage Tank: 2.8 gallon
      • One year warranty
    • Hydrotech 1240 Pro Series Reverse Osmosis System 25 gpd
    • Hydrotech 1240 Pro Series Reverse Osmosis System 25 gpd

      Part Number: 1240301-00
      • Filtration Capacity: 25 gpd
      • Smartap checks water quality at the push of a button
      • Uses quick connect fittings
      • 3/8" tubing to RO tank and faucet for better flow
      • Integrated mounting bracket
      • Color coded tubing for easy installation
    • Pura 1340302 QCRO 4 Stage Quick Change RO System 50 gpd
    • Pura 1340302 QCRO 4 Stage Quick Change RO System 50 gpd

      Part Number: 1340302-60
      • Includes standard air gap faucet
      • Quick change filters for fast, easy maintenance
      • Quick connect fittings
      • Color coded tubing makes installation easier
      • Interchangeable filters available to customize the system to local water conditions
      • Produces high quality water for better tasting coffee, tea, juices, soups, sauces and pasta and clearer ice cubes
      • Tested and Certified by WQA to NSF/ANSI Standard 58

More About Reverse Osmosis Drink Water Filter Systems

Reverse osmosis drinking water systems have their own separate faucet and require a separate hole near your sink. Many sinks already have this extra hole, usually occupied by an in-sink soap dispenser or spray nozzle, so there's no extra drilling required. Other sinks, however, will require you to drill an extra hole in your countertop before installing the reverse osmosis water system. If drilling is required, carefully consider the type of material your counter is made of so you do not accidentally crack it.

If you've done your homework and are set on a hidden, under sink reverse osmosis water system, congratulations! You have graduated to a new level of water purity! The extra faucet is sleek and low-profile and gives you instant access to freshly filtered reverse osmosis quality water at any time. And an under sink reverse osmosis water system is more effective at removing water contaminants than any other system, too.

The filters are easy to replace, too. Since reverse osmosis filters are mounted under the sink, they're easy to access.