The high temperature 1-Ply reinforced silicone hump coupler is designed to connect to a (3 x 2-3/4)OD tube and is 3 long. Standard stainless steel worm-gear #044 & #048 clamps provides tight connections, durability, and is corrosion resistant for industrial, commercial, truck, off-road, and racing applications. Product Features:High Temperature Reinforced SiliconeClamps For Tight ConnectionsCorrosion Resistant