Advanced EZ Change system provides clear, clean, great-tasting water for drinking and cooking to a dedicated faucet.The included RC-EZ-3 Advanced filtration cartridge can filter 1892.7ls and last up to 6 months.Avoid the mess of changing traditional cartridges and eliminates the need for buckets, towels, wrenches, and other tools.Tubing and installation hardware is included.A built-in LED filter life indicator takes the guess work out of when to change your filters.