... /2"), 80mm(3"), 100mm(4") Material: Alu, Brass Fire Hose Couplings German, EU, storz type fire hose coupling, BS, US, Italy type fire ... factory good quality and cheap price Germany type storz fire hose coupling 1)Sizes: 40mm(1 1/2"), 50mm(2"), 65mm ... (2 1/2"), 80mm(3"), 100mm(4") 2)Material: Alu, Brass 3)Surface finish: Zinc-plated, chrome-plated, epoxy painting. Advantages ...