... ,Twin Stack 4.5gal,horizontal Portable type Ingersoll Rand Ingersoll-Rand Portable Air Compressor P1IU-A9, Twin Stack, 2HP, 4.5 Gal Ingersoll Rand Portable Air CompressorLightweight ... COOLED AFTERCOOLER--OIL SIGHT GLASS--PRESSURE SWITCHIncludedNOMINAL POWER HP2MAX PSI125CFM4.3PHASE1POWER SUPPLY--TANK ORIENTATIONHorizontalBase Model Number634158CFM @ 100 PSI4.3 Ingersoll-Rand Portable Air ...