Kit includes filter head with built-in bracket, RC-EZ-3 level 3 replacement filter cartridge, mounting screws and filter change reminder sticker. Features twist-on, twist-off mechanism and quick-connect fittings, double water shut-off. 500 gal capacity. NSF certified. Reduces bad taste and odor, chlorine taste and odor, sediment, lead, cysts such as cryptosporidium and giardia, turbidity, atrazine, lindane and particulate class I.