Sierra Shieldsaust-C 3-18 Sierra Shieldsaust - C 1 Hose has a black synthetic black tube and cover. The Shieldsaust - C Hose is reinforced with double wire helix embedded between plies of synthetic cord and is abrasion resistant. Specifications I.D. 3 18 or 80mm O.D. 3 1932 or 91mm Wt. C 150 Ply 2 Bend Radius 4 x I.D. Burst Pressure 175 PSI Working Pressure 60 PSI The temperature ranges from -20F to 200F continuous, 250F intermittent Applications Primarily used for wet exhaust connections with s