Features Specifications:Six TDS Water Quality Monitor RO Filtration  Specifications: 1) PP sediment cartridge (KCPP-10) 2) Granular carbon filter cartridge (KCGAC-10A) 3) CTO extruded carbon block cartridge (KCCB-102A) 4) RO membrane 5) Post activated carbon  6) Auto flush valve 7) 3.2G steel tank 8) Fittings and goose type faucet 9) 50G/75G/100G pump 10) Four way valve or solenoid valve 11) TDS water quality monitor