3/4" Marine Exh/Wtr 50 Ft | Sierra 116-200-0340 3/4 in. Marine Exhaust / Water Hose (No Wire) 50 ft. Coil Straight connections in wet exhaust systems Engine water circulation lines Black heavy walled synthetic rubber Reinforced with 2 or 4 plies of synthetic cord Resistant to: engine heat, exhaust fumes, ozone, mild chemicals, antifreeze, salt water Temperature range: -20F to +200F continuous and +250F intermittent