Thanks to its 304 stainless steel construction, this NSF-approved Perlick 630SS Forward Sealing Faucet will not pit, tarnish, or taint the flavor of beer, wine, and other beverages. It features a revolutionary ball and floating front seal design that prevents beer from being exposed to air, so the handle lever won't stick and there will be no build up of mold and bacteria in the faucet body. It also has fewer internal parts, resulting in better reliability and fewer service calls.