NEW REVOLUTIONARY BREAKTHROUGH IN REVERSE OSMOSIS WATER SYSTEM. This is California edition Reverse Osmosis have the latest high recovery membrane. A real breakthrough in Reverse Osmosis Water System. 1 to 1 ratio of purified water and waste water. Regular Reverse Osmosis System have 1:4 ratio of purified water and waste water. This system is fully tested and assemble in our California Location. Come with NSF certified component and material 5 Stage Reverse Osmosis with pre filters design for USA / California 1st Stage Sediment Filter PP25105 water filter cartridge removes extra fine sand, dirt, silt, rust, and scale particles from your household water. This 10 inch water filter is constructed with durable spun-bond polypropylene for higher purity and chemical compatibility and increased resistance to chemical and bacterial attack. 2nd Stage KDF85/Catalytic Carbon Filter - 2510-K85/CC - Reduces chloramines, chlorine, iron, sulfur and heavy metals - Great for city or well water- Bacteriostatic qualities do not allow microbes to breed in filter 3RD Stage Activated Carbon Block filter Cartridge -CBG-10ZL This special carbon block design for chloramines Reduction. Most of the cities are switching over to Chlorine/Chloramine. 4st stage New Revolutionary High Recovery Membrane. 35 GPD Membranes have a 1 to 1 ratio of purified water and waste water. TLC Residential Membranes use an industry leading state-of-theart TLC (Thin Layer Composite) membrane providing high quality water for a broad range of water chemistries. Each membrane is required to meet our factory's strict performance requirements prior to shipment.