PORTER-CABLE CPFC2TV3525VP 15 Amp 3.5-Horsepower 25-Gallon Oil-Free Wheeled Vertical Compressor 175 psi - 60 gal equivalent tank size as compared to conventional 125 psi model High-flosm air regulator (145 psi start and 175 psi stop pressure switch) and High-flosm quick connect coupler for less pressure drop Direct-drive, twin cylinder, oil free design for durability and no maintenance 120-volt high-torque, capacitor start induction motor for reliable starting Longer life and quieter operation with -inch4 Pole-inch 1725 rpm motor; Large air regulated pressure gauge for easy visibility and better accuracy