1. NOTE: , ! ! Maximum pressure up to 5000 PSI. Maximum flow rate is 8 GPM. Maximum water temperature is rated at 60?? 140?H. The pressure washer gun has M22 connector, compatible with M22 14mm and M22 15mm connectors. The M22 14mm connector is compatible with Generac, Simpson, Briggs Stratton, Craftsman, Karcher, Ryobi pressure washers. The M22 15mm connector is compatible with Sun Joe, Campbell, MI-TM, AR Blue, Stanley, Cleanforce, Simoniz, Excell pressure washers2. If the hose has an M22 14mm connector with an inner diameter of 14mm, please connect directly to the hose. If the hose has an M22 15mm connector with an inner diameter of 15mm, please connect the brass connector to the gun and hose3. The replacement pressure washer gun is available in three lengthsThree lengths: 40 inches, 25 inches, 8.8 inches. The pressure washer pole is compatible with almost gasoline-driven and electric pressure washers 4. The pressure washer pole extension pole has a 14 inch standard quick connector. Connect any accessories with a 14 inch plug to the spray gun. Such as nozzle tips, pivot couplers, foam cannons, extension poles, surface cleaners, undercarriage cleaners, water brooms. Safety trigger lock prevents accidental operation