Scientific DesignThe spray gun has a comfortable grip that fits your hand, making your pressure washing job a breeze. The spray gun also comes with a safety locking trigger that prevents accidental trigger pulling. Special ImprovementThe 7-inch 30-degree rod comes with a 1/4-inch quick-disconnect end to simplify nozzle replacement. It provides extra length to the spray gun so it's easy to reach hard-to-reach places. The 5-piece pressure washer nozzle can meet your needs in different situations: red (0); yellow (15); green (25); white (40); black (soap). [COMPATIBILITY] Maximum flow rate: 3.96 GPM, working pressure up to 4000 PSI. high pressure washer gun is perfectly designed for car cleaning, window cleaning, driveway, roofing, siding cleaning. NotePlease make sure your pressure washer hose is metric M22 female fitting. The inlet size of the pressure washer gun is M22-14mm [ID], M22-15mm [ID] and G3/8 quick coupling. [QUALITY GUARANTEE] If you have any questions, please feel free to contact us. Our professional after-sales team is always at your service.