Compact wall mounted chilled drinking fountain. Waterways are lead-free in materials & construction. Stainless steel top with heavy gauge steel frame. High-efficiency cooling tank and coil. Dial-a-drink bubbler. 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). Easily accessible by removal of front panel. 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. 4 gph chiller, sandstone finish.