Cast Iron fitting socket ( Coupling) 1.1/8''-6'' 2 BS,ANSI,DIN Thread ... 3 Black,Galvanized 4 ISO,SGS,CIQ Cast Iron Pipe Fitting Hydraulic Quick water Coupler size: 1/8'-6'Material: malleable ... , plugs, backnuts, crosses over, round caps etc. Cast Iron Pipe Fitting Hydraulic Quick Coupler, size: 1/8'-6' Product ItemMalleable iron ...