2 HP 1 Stage 5.5 CFM @ 90 PSI 2-Cylinder Air Compressor Pump Speedaire 4B222E 4B233C 4B232B2 HP Replacement Air Compressor Pump for Speedaire Air Compressors Brand new two cylinder cast iron single stage air compressor pump. This is a 2 horsepower pump that will deliver up to 5. 5 SCFM at 90 PSI. This pump is most commonly used on compressors under 40 gallons in size and can be used with a 110 volts or 220 volts two horsepower or larger motor. This pump comes complete as shown in the photos, including intake filter and pulley. See