Ideal for cleaning vertical and overhead surfaces. Perfect for washing tractors, trailers, siding, windows, eaves, etc. Heavy duty, impact-resistant trigger guard has made the ST-601 an industry standard for manufacturers of telescoping wands. Horizontal flow-through design. Forged brass housing for maximum strength. Stainless steel spring, needle, ball and seat for chemical resistance. Special heat and chemical resistant seals for optimum performance even in the harshest of environments. The ST-601 is also the replacement trigger gun for the Ground Force, Classic, Big Guy, Maxima and Ultra Clean.   Pressure: 4000 PSI Temperature: 300° F Flow Rate: 12 GPM Inlet: 3/8" FPT Outlet: 1/4" FPT 4000 PSI max 300 F. max 12 GPM max Inlet: 3/8" FNPT Outlet: 1/4" FNPT