Galvanized steel cabinet. Chiller is air cooled and is designed for remote installation. Stainless steel storage tank. May be used to supply up to two drinking fountains. 1/4" OD stainless steel water tube connections. Compressor is hermetically sealed, reciprocating type, single phase, lifetime lubrication. The condenser is cooled with a permanently lubricated fan motor. Stainless steel cooling tank with continuous copper tubing. Factory preset thermostat, (adjustable to compensate for altitude requirements). R134a refrigerant. Product Certified to NSF/ANSI Standard 61, Annex G (weighted average lead content of <=0.25%) and is in compliance with California's Health & Safety Code Section 116875 (commonly known as AB1953). Models covered by this specification comply with all known Plumbing Codes. Listed by Underwriters’ Laboratories to U.S. and Canadian standards. 8 gph commercial grade chiller.