Erie Tools Pressure Washer Rotating Turbo Nozzle 4,000 PSI, 6.0 Orifice, 6.0 GPM with 1/4" Quick Connect Plug Maximum Pressure: 4,000 PSI Gallons Per Minute: 6.0 Nozzle Orifice Size: 6.0 Maximum Operating Temperature: 212&deg; F 1/4-inch steel, brass-plated Quick Connect plug.