This Legacy 5000 PSI 3/8" MPT Pressure Washer Hose Quick Coupler Plug - Stainless Steel (8.707-152.0) is machined from top grade materials to the same exacting specifications as the high cost performance leaders. This Male NPT Quick-Connect Plug is corrosion resistant and designed to withstand harsh pressure washing detergents and chemicals. It's primarily used to snap connect high pressure hoses.