... , Nylon Size:3/4",1-1/4",1-1/2" Hose Coupling Types:Female adaptor-threaded Material:Aluninum, Brass, Cast Iron, Nylon ... -1/2", We mainly supply camlock couplings (cam & groove quick couplings), guillemin coupling, Bauer type coupling, Ground joint coupling, sandblast coupling, King combination nipple, DIN2817 ...