Marketing InformationFurnish and install on the plans and described herein, a Caleffi hydro separator as manufactured by Caleffi. Each separator must be designed with an epoxy resin painted steel body, 300 stainless steel internal baffle, preformed insulation, a 1/2 in threaded thermometer pocket well front center, a brass blowdown valve with garden hose connection and automatic brass air vent isolated manually with service check valve. The separator design must include sweat, press or NPT female connections with cast iron union nuts. Each separator shall be a Caleffi model 548 Series or approved equal.