fire hose coupling A): type: Ansi Pin type; B) Size: 1-1/4", 1-1/2", 2" ,2-1/2"; C) Material: aluminum; D) NFPA member. Fire hose coupling is a rigid interlocking end-piece on fire hose; it is used for connecting hose to hydrants or fire engine pumps and other hose appliances (nozzles, wyes, manifolds, strainers, etc).A) type: Ansi Pin type;B) Size: 1-1/4", 1-1/2", 2" and 2-1/2";C) We ensure you ...