DEWALT D55695 270CC 9 HP, 150 PSI, 17 Gallon Compressor with 18-Volt Battery Start 17 Gallon Tank, 150 Max PSI, 16.3 SCFM Pump delivers the surge air power and recovery needed to run extra nailers over standard 8 hp, 8 gallon DEWALT 270-cubic centimeters, OHV engine with low oil shut off for engine protection 18-volt Battery start (with battery and charger) for easy engine starting Long life cast iron pump utilizes 4-cyclinder design for high air output Metal panel protects the controls and pump; Large 10 (254 mm) semi-pneumatic tires for balanced, puncture resistant job site mobility