The General Pump YG4000 is a Rear Inlet Spray Gun. It has an Operating gpm of 10.5 and a Maximum psi of 5,000. Its Maximum Temperature is 320° F and its weighs 1.7 lbs. Its Inlet port size is 3/8" NPT-F and its Outlet port size is 1/4" NPT-F. Its dimensions are 8.0" x 7.3" x 1.3" and its material is Stainless Steel, Brass, Plastic, Buna-N and Teflon. Features include: GP-exclusive design, New body design that provides higher resistance to overpressure, Ventilation holes provide excellent insulation, Ergonomic design offers a shock-resistant handguard, Internal components permit easier trigger pull and operation.