... , sa, aa,Material : Aluminium or BrassSize: 1/2", 3/4", 1" , 11/4", 11/2", 2 , 21/2", 3", 4", 5", 6" Adaptor x ... ) Precisely machined for accurate fit ,join fast and save effort.(2)Recess holds gasket firmly in place assuring proper placement .(3 ... ) Working pressure is 1.6Mpa and strength test pressure is 2.4Mpa.Packing: International seaworthy packaging, or according to customers' requirements ...