Check the listing for details. DYNABRADE 97566 Quick Connect,Socket,1/4" Body,1/4"-18 13F696. Condition: New. Listed at 44.28 USD. Quick Connect Hose Coupling, Universal, Composite, Socket, Female, NPT, Coupling Size 1/4 in Universal interchange polyurethane/steel quick-connect air coupling plugs are the male end of coupling sets. Also called nipples, they're inserted into the coupling bodies (female ends) to connect tools to air, water, or fluid lines. Polyurethane/steel couplings combine polyurethane's shock absorption and resistance to abrasions, oils, and chemicals, with steel's hardness, resilience, and wide working temperature range.Universal interchange quick-connect air couplings are designed to work with other interchanges accepting multiple styles of nipples, including industrial, Tru-Flate, and ARO. The push-to-connect style has a protective sleeve that slides forward until the plug ejects. The socket's shu.