Vapor-Flo 7970Freight not included. The Vapor Flo 7970 is an all electric pressure washer featuring pressure levels of 2175 psi (150 bar) and a flow rate of 8. 7 LPM. Equipped with a heavy duty 4. 0 HP, 440V three phase motor, this machine can handle a wide variety of applications, such as removing grease and chewing gum. With the ability to function as a hot or cold water pressure washer, high temperatures reaching 79. 4C to remove tough stains. The cold water