... :Aluninum, Brass, Cast Iron, Nylon Size:3/4", 1-1/4", 1-1/2" Nylon quick coupling Types:Female adaptor-threaded Material:Aluninum ... , Brass, Cast Iron, Nylon Size:3/4", 1-1 ... /4", 1-1/2", We mainly supply camlock couplings (cam & groove quick couplings), guillemin ...