Includes filter head with built-in bracket, RC-EZ-1 level 1 replacement filter cartridge, mounting screws, supply adapter, lead-free faucet, 1/4 in plastic tubing, and filter change reminder sticker. Features twist-on, twist-off mechanism and quick-connectfittings - double water shut-off. 3,000 Gal capacity. NSF certified. Reduces bad taste and odor, chlorine taste and odor, and particulate class III.