3 3/4" Softwall Marine Exh Hose 12 1/2' | Sierra 116-200-33443 3 4" Softwall Marine Exh Hose 12 1 2' Sierra 116 200 3344 Shields 16 200 3344 Marine Exhaust Water Hose 3 3 4 in. Marine Exhaust Water Hose (No Wire) 12 1 2 ft. length Straight connections in wet exhaust systems Engine water circulation lines Black heavy walled synthetic rubber Reinforced with 2 plies of synthetic cord Resistant to: engine heat, exhaust fumes, ozone, mild chemicals, antifreeze, salt water Temperature range: 20F to +200F continuous