HPS 3" (76mm) Stainless Steel V-Band Clamp Kit with Aluminum flanges [ VCKIT-AL-300 ] is a durable and versatile clamping system for your automotive and industrial applications. The clamp features a Quick Release T-Bolt to allow quick and easy installation without having to fully disassemble the clamp. The clamp is made of 100% 304 stainless steel for excellent weather and corrosion resistance. The HPS Aluminum V-Band flanges feature a male and female side to automatically align the flanges onto each other to eliminate improper installation. The back side of HPS V-Band flanges feature a recessed lip to help center your aluminum tubing to the flange. This recess matches the inside diameter of your 16 gauge tubing to allow unrestricted air flow. HPS Aluminum V-Band flanges are made of 6061 aluminum and utilize a NBR o-ring to create an air-tight seal for positive pressure applications. Ideal for intercooler piping systems as well as intake systems. The kit includes 100% 304 Stainless Steel Quick Release 3" (76mm) V-Band Clamp, Male/Female Aluminum V-Band Flange Set, NBR O-Ring, Non-locking Nut and Nylon Locking Nut. REMARK: Do not use HPS Aluminum V-Band kits for exhaust applications.