Nylon Sandblast Couplings Types:Female adaptor-threaded Material:Aluninum, Brass, Cast Iron, Nylon ... -1/4", 1-1/2",We mainly supply camlock couplings (cam & groove quick couplings), guillemin coupling, Bauer type coupling, Ground joint coupling, sandblast ... bolt clamp, whipcheck safety cable, washdown gun, etc. Nylon Sandblast Couplings