This big blue housing 10'' ensures that you recieve clean and safe water supply to your ro purification system in your kitchen. Increase the filter life in ro system, lessen the filter cartridge substitiute cycle. This water filter system are ones which can be recycled for multiple use by giving a pressure wash. Get clean water supply to your washing machines helps in retaining white cloths its shine, no more clogging of your bath and kitchen room taps. Get clear and clean water for bathing. The contents of the packet are 1 filter housings 10 inches.