The 500 series cold water gas washers are commercial-duty direct-drive designed for the homeowner to professional power washers.

Powered by gas engines, these products are matched with industrial-duty pumps to provide smooth and constant operation. The 500 series is fitted with low-pressure chemical injection and comes with 3/8″ high-pressure hoses, trigger control gun, and up to four quick couple nozzles for the best cleaning results (the Model 531E has an adjustable nozzle). The heavy-duty welded tube frame is powder-coated with pneumatic tires, built-in nozzle holders, gun holder, and hose hanger. The pressure washer handle has been lengthened for easier use and removes easily for transportation in confined space. Preassembled, these pressure washers require only a simple two-bolt installation of the handle and are packaged in a cardboard box suitable for reshipping.