Name: USA universal type couplers; Accepts Milton type, Truflate type, ARO type plugs and nipples; ... Body: 1/4"; Thread: NPT; Name: USA universal type couplers; Accepts Milton type, Truflate type, ARO type plugs and nipples ... , general air connections, air piping systems, air pressure equipments; The quick couplers include: Female thread socket, Male thread socket, Socket with hose ...