Prevost USI081252 3/8" NPT Truflate Quick Release Couplers 2 Pack Brand new Prevost USI081252 Truflate automotive-style 3/8" male NPT air couplers with 3/8" body. These are very high-quality Prevost coupler that features a non-marring, impact-resistant, high-grade composite body. They are easy to use for anyone and is built for safety and high efficiency! The quick-release button on this coupler allows you to easily release plugs with one hand! It also purges the air on everything down line, such as air hoses and tools, so that there is no hose whipping or sudden pressure releases. Note - 3/8" NPT Measures about 5/8" in diameter if measured with a ruler or tape measure. Specifications: Brand: Prevost Part Number: USI081252 Truflate/Automotive Style 3/8" male NPT Easy To Use Anti-marring Heavy-Duty Composite Body Steel Inner Construction Operating Pressure: 29 to 174 PSI