External bypass system allows more water into the system to protect from heat build-up. Forged brass manifold. Thermal and safety relief valves. Water filter with clear sleeve for screen inspection. Powder coated steel frame with 11⁄4-inch roll cage, handles and lifting hook. Convenient gun/wand holder and hose wrap. Two-piece belt guard for quick access to belts n 13-inch flat-free tires with locking tire brake. Fuel tank has powder coated outside and aluminized steel inside to prevent rusting. 13-gallon fuel tank capacity for 9.5 hour run time.