The puck gun head has a 1/4 quick connector and is compact with a 1/4 plug, like foam cannon, nozzle tips, swivel coupler. plus, the M22-14 thread inlet fitting is easy to connect to a 14mm diameter pressure washer hose. Do not connect the garden hose or garden hose. The gun body is made of engineering plastic. The internal structure is in stainless steel. The windshield washer spray gun is a 6.35mm quick disconnect fitting and inlet fitting M22-14 thread (inner diameter 14mm). The black accessories are M22 to QC adapter, it is easy to use and detachable, which means it can be easily installed on Karcher Quick Connect spray gun. Equipped with 5 quick connect nozzles in different colors: red nozzle is suitable for blowing (0), orange nozzle is suitable for stripping (15), green nozzle is suitable for cleaning (25), the white nozzle is suitable for washing (40 ), and the black nozzle is suitable for soap (65 ). You can choose the right nozzle for the cleaning job. Comfortable handle and safety lock designed for easier use. For watering flowers or plants, washing a car, a fence or a roof. Very suitable for washing cars, motorcycles, trucks, but also for purging windows, roofs, floors, flowers, plants, fences, streets, etc. The gun pressure washer is a good helper for your cleaning and make your work easier cleaning.