Vapor-Flo 8550Freight not included. The Vapor Flo8550 is an electric pressure washer engineered for tough applications requiring a powerful, stationary unit. With a pressure level of 1880 psi, a flow rate of 1. 0 GPM, and a powerful 440V three phase motor, this machine is ideal for cleaning buildings, decks, equipment, machinery, work areas, and other surfaces. This pressure washer offers both hot and cold water functionality for tough jobs like removing gum and