Prevost Safety Air Plug Coupler ISI061202 3/8" FNPT 2-Pack 2 Pack Prevost ISI061202 1/4" body air coupler with 3/8" FNPT inlet threads. These are high quality Prevost couplers features a non-marring, impact resistant, high grade composite body. These couplers are built for safety and high efficiency, featuring a quick release button to allow 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. This coupler features a 1/4" body and has a 3/8" FNPT threaded inlet. These couplers are compatible with Prevost Industrial Interchange Style air plugs and has a 3 year manufacturer's warranty.* Specifications: 3/8" Female NPT Accepts 1/4" Plugs Easy To Use Anti-marring Heavy Duty Composite Body Steel Inner Construction *Warranty valid only if used with Prevost high quality steel plugs.