1.Quick Coupling Type A, 2.Size1/2"-4", 3.Material:stainless steel ADAPTOR ... -pressure ball valve, globe valve, check valve, gate valve, Y type filter* 150LBS * Quick Connector Fittings, Model A, B, C, D ... .4) compression-type pipe fittings products;5) designed and manufactured according to customer needs all kinds of special products Quick Coupling Type A