Pin Lug Hose coupling Material:Aluminum, Brass Available sizes: 1-1/2", 2", 3". 4". 6" Pin Lug Hose coupling We are Fuzhou Hongxing Machinery Co., Ltd. in Fuzhou, Fujian Province, China. We mainly supply camlock couplings (cam & groove quick couplings) in aluminum, brass and stainless steel.,guillemin coupling, Bauer type coupling, chicago coupling, Ground joint coupling, sandblast coupling, ...