Torque Solution Clamshell Boost ClampApplication: for 3.5" Aluminum PipingTorque Solution Clamshell Boost Clamps are constructed from 6061 billet Aluminum and made to withstand high boost pressures. Easy to use design consisting of a single heavy duty steel pin for quick disassembly and reassembly. Beveled edges on flanges for cleaner welds. O-ringed flanges w/ tight tolerances to ensure a leak free setup. These are an affordable alternative to either VanJen or Wiggins style clamps without sacrificing on quality.Features: 6061 Billet Aluminum Black Anodized w/ Torque Solution Logo Steel Nickel Plated Quick Release Pin Limited Lifetime Warranty Kit Includes: x1 Outer Clam Shell Clamp x1 Quick Release Pin x1 Aluminum Boost Collar x2 Beveled Aluminum Flanges w/ O-rings