In line water filter cartridge/water cartridge filter   1)High quality products,reasonable prices and professional service 2)pure PP material for the shell  3)NSF42,ISO9001   Product Description  About in line water filter cartridge     The filter cartridge is designed to connect with the tubes directly.  It is very convenient for installation and replacement frequently.  It can be with various filter media, such as PP sediment filter cartridge, granular activated carbon, carbon block filter cartridges, resin, ceramic balls,minerals to meet different needs.   General Post Carbon Filter is 10"X2" and 10"X2.5",screwed or quick connected. Company Information