11.2 CFM at 120 PSI. Flywheel is 11 diameter with v groove for belt. Ball bearing check valve. The item “REPLACEMENT V TYPE TWIN DUAL 2 CYLINDER AIR PUMP FOR 3 HP AIR COMPRESSOR” is in sale since Sunday, April 05, 2015. This item is in the category “Home & Garden\Tools\Air Compressors”. The seller is “tiltla” and is located in Long Beach, California. This item can be shipped worldwide.