aluminium camlock coupling hydant adaptor 1.size:1/2" to 8" 2.type: A,B,C,D,E,F,DC,DP, AA, DD, ... from 1/2" to 8*parts" type A, type B, type C, type D, type E, type F, type DC, type DP,type AA, type DD*advantage: economical, convenient, simple,* ... available in a wide range of materials ...