Central Pneumatic 2.5 Horsepower, 21 Gallon, 125 PSI Cast Iron Vertical Air Compressor Built-in quick coupler for convenient air hose connection Air delivery: 5.8 CFM @ 40 PSI, 4.7 CFM @ 90 PSI Reduced vibration with rubber foot stabilizers Heavy duty 2-1/2 horsepower rated motor Oil level indicator window for easy maintenance