Bosch has actually 4 different air compressor: electric: 1HP 3-Gallon 120-PSI (hand carry); Product #: CET3-10 - oil lubed; weight 57lb, 72 dBA 2HP 4-Gallon 125-PSI (collapsible handle and 10-in pneumatic wheels); product #: CET4-20W - oil lubed; weight 85lb, 80 dBA, it fills up the tank from 0-125 PSI in 45seconds - recovery time is 10seconds. 1.5HP 8-Gallon 120-PSI (wheelbarrow compressor); product #: CET8-15W -oil lubed, weight 180lb, recovery time 17 seconds gas powered: 6.5HP 8 Gallon 120-PSI (wheelbarrow compressor); product #: CGT8-65W - oil lubed, 200lb, Honda GX engine, recovery time 14 seconds just a few specs if you guys are interested