This Quick Disconnect and the Male and Female Nipples can be used to turn setup and tear downs into a quick and convenient task. Setup of vacuum applications is significantly easier because all vacuum hose can be added at the last minute allowing more focus on the laminate itself. Some vacuum bagging applications will also benefit from the #2220 Brass Barb Fitting to quickly thread vacuum components turning your entire vacuum line into an easy quick disconnect operations. For spray and chopper applications, our air hoses are already supplied with a quick disconnect fitting but require a nipple to attach to the gun. Connection to our #1171 Chopper Gun, #120 or #836 Gel Coat Spray Guns require a #2222-A Male Nipple. Connection to our #123 or #126 Gel Coat Touch Up Guns require a #2223-A Female Nipple.