... (4") 2) Working pressure: 8-20 bars Fire Hose, Hose Pipe , Rubber lined fire hose , Pvc hose Features:1) Sizes: 40mm ... bars3) Bursting pressure: 24-60bars separately 4) Materials: a) Outside jacket: polyester fiber and polypropylene, high strength synthetic polyester yarns, polypropylene ... b) Inner lining: red, black or white rubber c) Outside jacket colors: white, red and blue 5) Length: 1-30 meters ...