🚨 READ: This pair is NOT compatible with M22 pressure washer hoses. It is ONLY compatible with a 3/8" NPT hose. Machined Stainless Steel: For corrosion resistance and smooth connections that last. Upgraded O-Rings: Made from Viton for increased longevity and leak-resistance. Viton is chemical- and temperature-resistant. It outperforms standard materials used in quick connect fittings which get brittle, crack and leak ✅ What's included: - 2 x 3/8" NPT Female Automatic Couplers, 1 x 3/8" NPT Male Plug, 1 x 3/8" NPT Female Plug. ✅ 1-Year Residential Warranty – We stand behind what we build, so you can continue trusting us to make your washes more enjoyable, Weight: 0.881849048 Pounds, Manufacturer: McKillans