Karcher HD 4.0 40 GeB 4000 PSI @ 4.0 GPM Belt Drive Crankcase Pump 389cc Vanguard 400 Commercial Cold Water Pressure Washer w Electric Start 1500 lbs MAX PRESSURE 3000 PSI ID FLUID ORIFICE x AIR CAP:1.5 X 1015 MAX PRESSURE 3000 PSI ID x LENGTH 3 8" x 100' MAX TEMP 250° F INNER MATERIAL Polyester braided OUTER MATERIAL Polyurethane TERMINATED Solid MNPT x Solid MNPT The tubing that carries the water through the heating element is made up of 316 stainless steel which is the preferred spec of the industry Durable VRT3 unloader with bypass loop diverts water flow when trigger gun is not activated The simple design of the HD Gas helps get the job done quickly and without hassle