This 3000 PSI 5.0 GPM Triplex Pump Gas Skid Mount Pressure Washer with Honda GX390 Engine from BE Power Equipment (B3013HTBC) is designed for professionals who need to depend on their equipment to be trouble-free for years of service. The heavy-duty Comet triplex pump is equipped with an external unloader system that delivers enhanced performance and longevity. For extra cleaning power, you can use the soap injector built into the pump to tackle heavier stains. The belt drive system increases the lifespan of the pressure washer by reducing heat and vibration of the pump and engine. An automatic low oil shutdown protects the engine, and a thermal relief valve on the pump enhances its life span. This unit is mounted on a powder coated steel plate that can be bolted onto a truck or trailer, making it very popular for mobile cleaning. The high water flow rate of the B3013HTBC will rapidly wash heavy amounts of dirt and grime.