Air Fittings 20mm-Features: \n Male/Female Quick Release Air Line Hose Fitting Male/Female Thread 1/4\"" Bsp.\n Made Of Heat Treated Hardened Steel For Strength And Durability. Zinc Plated Finish For Rust And Corrosion Resistance.\n Spring Loaded Quick Release Couplers For Use On The Compressor Side Have A Valve Built In To Shut Off The Air When Changing Between Tools.\n Simple To Use, Just Slide Back The Collar And Insert The Fitting, Then Slide The Collar Fully Back To Lock In Place.\n Compressed Air Couplings-Package Included: \n 1pcs Female Fitting Male Thread\n 1pcs Female Fitting Female Thread\n 4pcs Male Fitting Male Thread\n 4pcs Male Fitting Female Thread\n Size :1/4\"" BSP\n Type:Male/Female fitting, male/Female thread\n\n\u2605\u3010INCLUDING\u30114 x Male Fitting Male Thread, 4 x Male Fitting Female Thread, 1 x Female Fitting with Male Thread, 1 x Female Fitting with Female Thread\n\u2605\u3010ADVANTAGE\u30111/4\"" BSP Air Line Connectors are made of heat-treated hardened stc