Clear, clean, great-tasting premium water for drinking and cooking without Reverse Osmosis is easier to achieve than ever before with the Culligan under-sink Ultra-Filtration 3-stage Drinking Water Filter System with Surelock. The Culligan US-3UF Premium Under-sink Drinking Water Filter System utilizes a 3-in-1 cassette style filter which allows 3 stages of filtration to be changed in one easy step and is also equipped with a floor leak sensor and alarm in the unlikely event of a water leak to prevent water damage. The built-in LED filter life cartridge change indicator will take the guesswork out of when to change your cartridge cassette. The Ultra-filtration system reduces bacteria and viruses, lead, microbial cysts, atrazine, bad taste & odor, and aesthetic chlorine taste & odor. The package includes a system manifold, US-3UF-R cartridge cassette, faucet, installation fittings, 3/8" tubing, and installation instructions. One-year limited warranty