Max Air Pressure 115 PSI. Flywheel diameter: 9.8(250MM). Required oil: air compressor lubricating oil. This Is Our “V” Style Twin Piston Air Compressor Head Which Is Ideal For 3HP Motors. Equipped With An Iron Construction With Cast Cylinder Sleeves, This Pump Head Is Designed For A Long Time Use And Is Easy For Maintenance. Its Belt Drive Design Also Provides Great Compression And Smooth Operation. Don’t Hesitate To Bring One Home! Twin Piston Air Compressor Head. Proven Belt Driven Design. Two Mufflers With Two High Efficiency Intake Filters. Oil Viewing Window And Drain Plug. Ball Bearing Check Valve Release. This item is in the category “Home & Garden\Tools & Workshop Equipment\Air Tools & Air Compressors\Air Compressors”. The seller is “comfortchoice” and is located in this country: US. This item can be shipped to United States.