... , red, blue, yellow, grey 3) Used for carrying compres Air Hose Features:1) Max. length: 100m2) Color: black, red, ... blue, yellow, grey3) Used for carrying compressed air and inert gas in mines, factories and civil engineering4) ... Light and soft5) Air tight internal layer6) Age and wear resistant outer skin7 ... working pressure8) Thickness: 1/4 2" Air Hose