Flushing nozzle designed for a 1/4" (6.35mm) quick coupler. Ideal for quick exchange of spray nozzles and spray guns. This nozzle is best suited for flushing dirt, mud and grime. Uses: Wet sweeping leaves from walks, curbs and driveways, cleaning stable floors, washing swimming pool bottoms and cleaning barbecue grills. Connects to all of the most common pressure washer equipment in the industry. 4,000 PSI.