Sierra Shieldsaust-C 1 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. 1 or 25mm O.D. 1 1132 or 34mm Wt. C 33 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 significant bends, engine intake an