Flows 17 gallons per hour of pure RO water, with an astounding 2:1 ratio and Includes upgraded KDF85 Carbon Filter The Growonix EX400 Reverse Osmosis Filter is designed to flow 17 gallons per hour of pure RO water, with an astounding 2:1 ratio—High flow rates and water savings never before seen in a package so affordable and durable. This Growonix EX400 comes with the upgraded KDF85 Carbon Filter which removes chlorine, chloramines, pesticides and herbicides. A must have for well water to reduce iron, hydrogen sulfide,heavy metals and bacteria. The Bacteriostatic qualities do not allow microbes to breed in filter.The GrowoniX EX400 Systems Feature: High Flow Cold Water membrane2:1 system ratio – The most efficient in the industryElectrogalvanized powder coated steel bracketsMembrane flush kit2.5″ stainless steel liquid filled gaugesOne Eco Green Coconut Carbon filter rated for 8,000 gallons chlorine/chloramine reductionHigh Flow pleated sediment filter, completely washable and reusableAuto Shutoff Valve: for positive automatic shutoff when using a float valveNo additional pre-filters neededCarbon capacity—8,000 total gallons of chlorine or chloramine removal, or 3,000 gallons of RO water at a 2:1 ratio.*Chloramine removal requires a KDF85 carbon fiber.