Heavy-Duty Surface Cleaners for high pressure cleaning of driveways, parking lots, sidewalks, warehouse floors, etc. Designed to handle up to 4000 PSI and 8 GPM supplied from your existing pressure washer. Heavy-duty, yellow canister supports high quality swivel and arm assembly. Available in 16" to 20" sizes in either brush skirt or caster wheel design. Rated to 180° F. Units are complete with trigger wand, handle, nozzles and feeder hose. Units come with dual arms for (2) nozzles.