We Come To You 1-Year In-Home Limited Warranty (excludes filter replacement cartridges), Twist-and-lock design for quick-and-easy filter changes, Reduces particulates, chlorine taste and odor, or clean-tasting water, Sanitary quick-change filter cartridge, Automatically shuts water off when filter cartridge is replaced, NSF standard 42 certified for quality assurance, Designed for exclusive use with InSinkErator water dispensing systems, System includes: Filter Head Bracket, F-1000 Replacement Filter, Two Polyethylene Tubes, Quick-Connect Fitting, Two Mounting Screws, 1/4" Compression Fittings, Filter head bracket compatible with only F-1000 and F-2000 replacement filters, Recommended 6 months replacement for optimal performance