Hump Hose Bellows provide flexible connectors for marine wet exhaust systems. They offer much greater tolerance to heat, misalignment, engine movement and vibration, with significant savings in cost, parts, labor and space. These molded exhaust bellows are 100% EPDM or silicone rubber with no textile reinforcement. Available from 3" to 10" ID with 6 step-up sizes. Black bellows: made from molded, high temperature, black EPDM rubber. Rated -40F to +250F maximum, continuous with a 5-year warranty Inlet/outlet accepts 2 hose clamps Part numbers ending in SS come with 4 stainless steel T-bolt hose clamps