Industrial Air Contractor Pontoon Air Compressor with Honda OHC Engine - 4 Gallon, 155 PSI, Model# CTA5090412 4.6 HP, 160cc Honda OHC gas-powered engine Delivers 6.9 CFM @ 40 PSI; 5.0 CFM @ 90 PSI 155 PSI max. pressure for optimum tool performance Oil-free, direct drive operation Air throttle cylinder