5 HP, 60 Gallon, Electric 230-V Reciprocating Air Compressor, Single Phase, 60 HZ, 18.1 CFM At 90 PSI, Designed For Residential Power Supply Requires Hardwired Electrical Installation, High Efficiency Stainless Steel Valves, Oversized Industrial Grade Bearings For Extended Pump Life, 100 % Cast Iron Pump Including Cylinder Head With Deep Groove Directional Cooling Fins, High Efficiency Inlet Air Filter With Sound Attenuation Baffles Balanced Pistons For Maximized Efficiency & Minimized Vibration, Oversized Cast Iron Balanced Belt Wheel To Allow Continuous Duty Operation, 1/2" Ball Valve Customer Connection.