This is a genuine factory Haws 5851LF Faucet Valve and is a panel mounted valve, self-closing, polished, chrome-plated, vandal-resistant lever handle with rough brass body. Dimensions: wall thickness maximum, 1" (2.5 cm); size of hole required, 1-1/16" diameter (2.7 cm). 3/8" NPT(F) inlet and outlet. Replaces Models 5855 and 5856. Haws manufactures drinking fountains and electric water coolers to be lead-free by all known definitions including NSF/ANSI Standard 61, Section 9, California Proposition 65 and the Federal Safe Drinking Water Act. Product is compliant to California Health and Safety Code 116875 (AB 1953-2006).