... 2,ceramic cartridge 3,cUPC,NSF,AB1953,ISO9001:2008 4,Brushed Nickle finish NSF kitchen faucet :cUPC, NSF, AB1953, ISO9001:2008 MaterialLead-free ... after 500,000 times open&close test.3, Got cUPC & NSF & AB1953 certificates for North American Market.Faucet Feature:1,surface ... quantity of this kitchen faucet to test quality at first. NSF kitchen faucet