Built out of durable cast iron, this air compressor pump features splash lubrication to keep the pump running cool. Also features an oil sight glass for easy maintenance. For home or industrial use, this air compressor pump is an ideal replacement for most 3 HP compressors. Heavy duty cast iron construction. Splash lubrication keeps pump running cool. Oil sight glass for easier maintenance. Cast iron frame and cylinder. Requires a 3 HP motor. 3 HP 145 PSI Cast Iron Twin Cylinder Air Compressor Pump. The item “3 HP 145 PSI Cast Iron Twin Cylinder Air Compressor Pump /replacement” is in sale since Thursday, August 24, 2017. This item is in the category “Home & Garden\Tools & Workshop Equipment\Air Tools\Air Compressors”. The seller is “tripp06″ and is located in Oxnard, California. This item can be shipped to United States.