5 Pack of Prevost ISI061201 1/4" body air couplers. These are very high quality Prevost couplers that feature a non-marring, impact resistant, high grade composite body. These couplers are easy to use for anyone and are built for safety and high efficiency! The quick release button on this coupler allows you to easily release plugs with one hand and it also purges the air on everything down line, such as air hose and tools, so that there is no hose whipping or sudden pressure releases. These couplers feature a 1/4" female NPT threaded inlet. These couplers are compatible with Prevost Industrial Interchange Style air plugs. Brand new 5 Pack of Prevost ISI061201 1/4" body air couplers. These are very high quality Prevost couplers that feature a non-marring, impact resistant, high grade composite body. These couplers are easy to use for anyone and are built for safety and high efficiency! The quick release button on this coupler allows you to easily release plugs with one hand and it also purges the air on everything down line, such as air hose and tools, so that there is no hose whipping or sudden pressure releases. These couplers feature a 1/4" female NPT threaded inlet. These couplers are compatible with Prevost Industrial Interchange Style air plugs. Specifications: 1/4" Female NPT Easy To Use Anti-marring Heavy Duty Composite Body Steel Inner Construction 5 Pack