This replacement 145 PSI air compressor pump fits compressors from most manufacturers. The splash lubrication keeps the air compressor pump cool while a heavy duty cast iron steel construction withstands rigorous use on the job. Oil sight glass for easy maintenance. Heavy duty cast iron construction. Splash lubrication keeps pump running cool. Oil sight glass for easier maintenance. Requires a 5 HP motor. 5 HP 145 PSI Twin Cylinder Air Compressor Pump. The item “5 HP 145 PSI Twin Cylinder Air Compressor Pump Garage Shop Auto Power Tools New” is in sale since Sunday, January 28, 2018. This item is in the category “Home & Garden\Tools\Air Compressors”. The seller is “self-made16″ and is located in Commack, New York. This item can be shipped to United States.