Use for engine intake and wet Exhaust connections where bends or long lengths are required. Also good for bilge pump intake/discharge, scupper lines, toilet intake/discharge, and holding tank vent and pump out. Black synthetic rubber tube and cover, reinforced with wire helix imbedded between plies of HD synthetic cord. Resistant to: Exhaust fumes, ozone, mild chemicals, antifreeze, salt water, abrasion and odor permeation. Temperature range:-20 ° F to 200 ° F continuous, +250 ° F intermittent. Meets SAE J2006 Type R2.