The high temperature 1-Ply reinforced silicone reducer coupler is designed to connect to a (4.15 x 3.75)OD tube and is 2.35 long. Standard stainless steel worm-gear #056 & #064 clamps provides tight connections, durability, and is corrosion resistant for industrial, commercial, truck, off-road, and racing applications. Product Features:1-Ply Reinforced High Temp SiliconeCoupler Hose Allows For Expansion/Movement/VibrationStainless Steel Worm-Gear Clamps Provides Tight ConnectionsWorm-Gear Clamps Provide Durability/Corrosion Resistant