Liff SW1 Water Filter Cartridge

Liff SW1 water filter cartridge designed to fit inside the Liff NP1, NDL2 or NCP1 10 Inch water filter cartridge housings.The Liff SW1 filters down to 1 micron.The Liff SW1 removes sediment from water and can be installed on the incoming main if required.How Big Is It ?
Approx 10 inch x 2 inch Life span approx 6 month