Name: USA Truflate type couplers and plugs, Automotive type sockets and nipples; Shape: Female, male, push on hose ... , plug, push on hose barb; Material: Brass or steel; Thread size: 1 / 4", 3 / 8", 1 / 2"; Coupler type: Truflate type, automotive ... , Male thread socket, Socket with hose tail, Male thread plug, Female thread plug, Hose plug, etc. Before delivery, all the sockets and plugs ...