Max pressure is up to 5000 PSI. Max Temperature of water is rated to 60℃ / 140 F. Pressure washer guns have M22 fitting, compatible with M22 14mm and M22 15mm fitting. M22 14mm fitting is compatible with Generac, Simpson, Briggs Stratton, craftsman, karcher, Ryobi pressure washer. M22 15mm fitting is compatible with Sun Joe, Campbell, MI-T-M, AR Blue, Stanley, Cleanforce, Simoniz, Excell power washer.<br> <br>If hose has M22 14mm fitting with 14mm inside diameter, please connect to hose directly. If hose has M22 15mm fitting with 15mm inside diameter, please connect the brass coupler to gun and hose.<br> <br>Replacement pressure washer gun has three lengths to use. Three Length: 40 inch, 25 inch, 8.8 inch. Pressure washer wands are compatible with almost gasoline powered and electric powered pressure washers.<br> <br>Pressure washer wand extension has 1/4’’ standard quick connector. Connects any accessories with 1/4’’ plug to the gun. Such as nozzles tips, pivoting coupler, foam cannon, extension wand, surface cleaner, undercarriage cleaner, water broom. Safety trigger lock to prevent unintended operation.<br> <br>Pressure washer gun kit has 5 nozzles. Pressure washer nozzles have different spray angle (0, 15, 25, 40, 65 degree). Choose different nozzle according to your needs.