5 Stage Reverse Osmosis Systems (Tank & Faucet Sold Separately) Why Use our Reverse Osmosis Systems? Our 5 stage under-sink reverse osmosis system gives you pure, fresh tasting water. This system is great for household and kitchen use and for creating pure water for ice makers and refrigerators. Physical Dimensions RO Unit: 15" x 6" x 17". (Tank and Faucet are not included) Product to Waste Ratio Waste Ratio 1 RO : 2 Waste Filtration Process Sediment. The Granular Activated Carbon (GAC) improves taste. Carbon Block (CTO) filter. The RO Membrane. Post Carbon as the finishing stage polishes the filtered water and improves quality and taste. Read more filtration process 1, Sediment 2, GAC 3. CTO 4. RO membrane 5. Post carbon Read more Filtration Process Pre Filters + RO Membrane Protects the RO Membrane from dogging with three stages: Polypropylene Sediment, Granular Activated Carbon (GAC), and Carbon Block (CTO) filters. The semipermeable RO Membrane is the main filter of the system. We recommend replacing the system's RO Membrane every 2 years for best performance. Post Filter The Post Carbon Filter, also known as the "Polishing Filter" reduces any remaining tastes from the filtered water. Replacement Filters Replacement 5 filters 50 GPD - ASIN : B01M67GOCI Replacement 5 filters 100 GPD : ASIN - B078B4NG63 Replacement 4 filters(without membrane) : ASIN - B01M27Z2Y1 we can check our store use this url amazon.com/maxwater for more replacement filters Stages of Filtration 1st Stage: 5 Micron Polypropylene Sediment Filter 2nd Stage: Granular Activated Carbon (GAC) Filter 3rd Stage: 5 Micron Carbon Block (CTO) Filter 4th Stage: RO Membrane 5th Stage: Inline T33 GAC Coconut Shell Carbon Filter Read more Specifications Includes 5-stage RO unit with clear pre-filter housings, RO Membrane, no Faucet, One set of installed pre-filters, Housing wrench and installation accessory pack. Rejection Rate 95-98% of TDS depending on incoming water TDS home water pressure and temperature. Physical Dimensions RO Unit: 15" L x 6" D x 17" H // Storage Tank: 11" Diameter, 14" Height. Product to Waste Ratio 1:2 Total Weight Approx. 27 lbs. Operating Temperature 40-104 degrees F / Max temperature 40 degrees C. System Operating Pressure 45-75 PPO Waste Ratio 1 RO : 2 Waste, No Power Required PSI Information For well water supply; please add a booster pump even if your pressure set between 50 to 70 PSI. Lower than 45 PSI, you must add a booster pump + high pressure shut-off switch. Higher than 75 PSI, add a pressure control valve to fix the pressure @60-65PSI Warning This system should only be used with a safe water supply. Additional Info Filter cartridges should be changed every 6-12 months under domestic conditions. Filter life varies and depends on the water source quality. (function(f) {var _np=(window.P._namespace("AplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('AplusModules-module-16-tech-specs').execute(function(resizeSpecTables) { resizeSpecTables('aplus-index-4', 'aplus-tech-spec-table', 'aplus-tech-spec-hide-loading'); }); })); Tank + Faucet sold separately. 1: Valve Adapter 2: Sediment Filter and Housing 3: GAC Filter and Housing 4: CTO Filter and Housing 5: Nipple 6: 1/4” Male Elbow with Double O-rings 7: Auto Shut-off Valve 8: Check Valve 9: 1/4” Male Elbow 10: RO Membrane and Housing Faucet and Filter Housings will vary with system options. 11: 1/4” Male Tee Run 12: Flow Restrictor 13: Drain Saddle 14: Inline Post Carbon Filter 15: Tank Stand 16: Water Tank 17: Tank Valve 18: Faucet* Read more Tank Faucet Filter Set Filter Set + 100 GPD Membrane 100 GPD Membrane options ✓ ✓ ✓ ✓ ✓