Kit includes filter head with built-in bracket, RC-EZ-4 level 4 replacement filter cartridge, mounting screws, supply adapter, lead-free faucet with built-in electronic cartridge life indicator, 1/4 in plastic tubing, 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, mercury, turbidity, particulate class l, VOC, MTBE, and chloramines.