Premium Construction: Crafted from high-quality material, these air hose fittings are engineered to resist rust and corrosion, ensuring extended durability and reliable performance in various industrial environments.Optimal Compatibility: Featuring a universal 1/4inch NPT thread and a 1/4inch body size, these fittings are designed to be compatible with both M and D type connectors. They can withstand a maximum working pressure of 300 PSI, making them suitable for a wide range of applications.Comprehensive Kit: This set includes essential components for your air systems: 1/4inch NPT IM female coupler, 1/4inch NPT IM male coupler, and both female and male 1/4inch NPT IM plugs, providing you with the necessary parts to start or continue your projects without interruption.Versatile Use: The standardized fittings ensure broad compatibility with various pneumatic tools and equipment, such as air compressors, blow , and air nailers, catering to the diverse needs of professionals and DIY enthusiasts alike.Secure Connection: Engineered with a 4-ball design, these fittings offer a robust connection that securely holds air tools and prevents air leakage, enhancing the efficiency and safety of your pneumatic systems.Color: As ShownMaterial: MetalPackage Contents:1 set * air hose accessoriesOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.