WW20BB 20" high efficiency 3-Stage Whole house Big Blue® filtration system with metal platform, pressure gauges and connection adapters. HHBB20BB 3-Stage Whole House Big Blue® filtration System suitable for POE (Point of use) installations. WW20BB housings are compatible with a broad range of cartridge types available on the market. ( For example the FCCST cartridge utilizes FDA-grade, sodium, based, a strongly acidic ion-exchange resin which reduces calcium and magnesium ion content in water) Additionally, pressure drop can be monitored through the two pressure gauges located in the inlet and outlet positions of the system besides the microbial protection conferred by blue coloured-housings in sunny locations. Equipped with pressure relief valves and a rounded bottom which increases stress resistance, WW20BB ensures a continuous supply of fresh and clean drinking water. Includes: Wrench for filter, O-rings. System dimensions (Height x Width x Length): 72cm x 38cm x 22cm, Operating pressure: 6 bar (90 psi)