5 in 1 Safety steel exhaust quick-connect universal coupler, 1/4" body, 1/4" fnpt. Accepts all major interchanges: Industrial (M-Style), High Flow (V-Style), Automotive (T-style), ARO (A-Style) & Lincoln (L-style). Safely bleeds off air pressure before releasing connector; Quick connect coupling for a safe & easy air hose connection. NPT: 1/4" Female or Male NPT. Air Flow: 80-120 PSI; Not recommended for use with high-vibration tools (impact wrenches, orbital sanders, etc.). Recommended to use with a leader hose to extend lifespan.