Automotive exhaust hoses are used on large trucks, commercial trucks, and buses to connect the vehicles crossover exhaust system to their muffler and exhaust stack. The hoses can withstand exposure to high-temperature exhaust. These hoses install with compatible clamps and do not require welding. Automotive exhaust hoses are used on large trucks, commercial trucks, and buses to connect their exhaust systems to their mufflers and exhaust stacks. The hoses are corrugated to allow them to flex and bend. They are made from stainless steel, which can withstand exposure to high-temperature exhaust and resists corrosion. The hoses do not require welding to install. This listing is for each. Technical Specification Item Rubber Exhaust Hose Inside Dia. 4 in Hose Length 20 ft Hose Tube Material EPDM Hose Reinforcement Type Helix Hose Reinforcement Material Not Reinforced Hose Color Black Vacuum Rating Not Rated Temp. Range -20 Degrees to 375 Degrees F Bend Radius 5 in Compatible Chemicals Dust, Fumes Not Recommended Chemicals Chips, Shavings, Cutting Oil, Liquids, Water