The Comet RWS 4030 E Hollow Shaft Electric Flange Pressure Washer Pump is a powerful and reliable pump designed for industrial and commercial use. It features a high-pressure output of up to 4,000 PSI, a maximum flow rate of 4.0 GPM, and a hollow shaft design for easy installation. This pump is also equipped with a thermal relief valve, a built-in bypass valve, and a stainless steel flange for superior durability. With its robust construction and reliable performance, the Comet RWS 4030 E is the perfect choice for any heavy-duty cleaning job.