DUSICHIN DUS-220 High Pressure Washer Gun,3000 PSI Max, 5 Pressure Power Washer Nozzles, 3.0 Tips 3000 PSI high pressure water gun body, brass fitting 5 pieces of high pressure water nozzles attached with different size Flow rate 3.0 GPM nozzles at 3600 PSI M22 Metric Male thread fitting Make sure your pressure washer hose is 14mm diameter inside the M22 metric thread