Mi T M CBA Aluminum Series 4000 PSI @ 3.7 GPM Belt Drive 389cc Honda GX390 OHV CAT Pump Gas Cold Water Pressure Washer Power Washer (49 State), Belt Drive, Honda Engine Nitrogen 190 Classic 290 Classic 390 Classic: shape square 190 Classic 290 Classic 390 Classic: The tools and parts in the 287253 Toolbox Kit are made from high quality materials Perfect for removing the toughest stains on brickwork and concrete Pump: Equipped with the Mi T M Pressure Relief Start which eliminates pressure build up in the system · External bypass system allows more water into the system to protect from heat build up · Forged brass manifold · Thermal relief valve · Water filter with clear sleeve for screen inspection