The high temperature 2-PLY reinforced silicone straight coupler is designed to connect to a (3" x 2-1/2")OD tube. The coupling is 3" long with a 90 degree bend reducer. Standard stainless steel worm-gear #044 & #048 clamps provides tight connections, durability, and is corrosion resistance for industrial, commercial, truck, off-road, and racing applications. NOTE: Not for use on pressurized side of supercharged or turbocharged applications.