AIR GAP FAUCET CHROME REVERSE OSMOSIS FILTER Long-Reach ALL CHROME Air-Gap Faucet FCT-LRAG-BN (103 Series): ALL CHROME SILENT SERIES Long Reach faucet works for Ametek Reverse Osmosis Systems, American Plumber Reverse Osmosis Systems, US Filter Reverse Osmosis Systems, Culligan Reverse Osmosis Systems, Pentek Reverse Osmosis Systems, and many other brands of reverse osmosis systems. This long reach CHROME faucet is an air gap faucet. 3 inch shank. An air gap is required by most plumbing codes to prevent waste water back flow. NSF LISTED AND APPROVED LEAD FREE FITS ALL RO SYSTEMS 1 CHROME AIR GAP FAUCET WITH ALL INSTALLATION HARDWARE