1/3 hp HP Diaphragm Compressor/Vacuum Pump/ GENERAL CHARACTERISTICS ITEM DESCRIPTION: OIL-LESS; CONTINUOUS DUTY; 64 DBA MAX. AT 50 PSI; IN/OUT PORTS 0.250 IN. NPT FEMALE; CAST ALUMINUM HEAD,HOUSING,CONNECTING ROD; STAINLESS STEEL REED TYPE VALVES; 1/3 HP,PERMANENT SPLIT-CAPACITOR,AUTOMATIC THERMAL OVERLOAD PROTECTED MOTOR; 6 FT. 3 WIRE CORD W/ 3-PRONG PLUG; GRAY METALLIC FINISH