Specifications include, but are not limited to:. Specifications for Commercial Grade Pressure Washer mounted on Trailer. 500 Gallon hot water Tank Polyethylene. Top fill. Drain plug. Adjustable pressure regulator. 10 gallon soap tank (Minimum requirement is a syphon for soap). Encased in a metal cage safely secured to the wood decking of the trailer to prevent water container from freely moving within the trailer. Must have a 200ft 3/8" – Inch High Pressure hose with retractable reel. Sprayer wand 32" inch minimum to 40" Inch Maximum with 3/8" inch hook to high pressure hose. Spray nozzles (0,15,25 and 40 degrees & a soap nozzle). Engine 6+ Horse Power 4000 PSI 4 GPM unit features a 12V Beckett Burner or equivalent with a 4 pancake fired heat exchanger. Fired burner that can use diesel (bio-fuel not approved). ½ - Inch schedule 80 pipe coil with 4 pancake bottom fired heat exchanger. Adjustable thermostat. Hour meter.