Max. PSI155 175 175 175 175HP4.6 12 14 11 13CFM at 175 PSI- 18.7 24 - 24CFM at 135 PSI - 21.4 - - -CFM at 100 PSI - - - 18.5 -CFM at 90 PSI5 24.4 24.3 - 24.3CFM at 40 PSI 6.9 26.8 - - -EngineHonda OHC Honda GX 390 OHV Kohler Honda HondaStart TypeRecoil Electric wrecoil backup Electricrecoil Electricrecoil ElectricrecoilEngine Displacement (cc) 160 390 - - -Engine Idle Control Yes Yes - - -Stage Single 2 2 2 2Drive Direct Belt Belt Belt BeltTank Type Horizontal twin Horizontal Horizontal Horizontal HorizontalAir Tank Size (gal.) (2) 2 30 30 30 30Portable or Stationary Portable Stationary Stationary Stationary StationaryPump Oil-free Cast iron Cast iron, splash-lubricated, 2-cylinder Cast iron Cast iron, splash-lubricated, 2-cylinderDuty Cycle80 100 100 - 100%Air Outlet Size (in.) 14 34 ball valve 34 34 12After-Cooler Included No Yes - - YesDrain System Manual Manual Manual Manual -Low Oil Protection No Yes - - -Fuel Capacity (gal.)1.9 U.S. quarts (1.8 liters) 1.6 1 12 - 1 12Dimensions L x W x H (in.)24 12 x 21 12 x 20 41 x 19 x 40 44 x 22 x 46 45 x 19 x 45 44 x 22 x 46