SHIELDSFLEX MARINE WATER/EXHAUST HOSE (no/wire) Email in your size and we will get back with price / 12- 1/2 " length avaliabe in 5/8" I.D. to 1-1/2" I.D. / 6- 1/4 " length avaliabe in 1- 1/2 " I.D. to 4" I.D. / 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: -20