Need to make an adjustment or fix to your quick release piping system You're in luck We are proud to introduce the Mishimoto Quick Release Clamp Weld Ferrule. Our ferrules are constructed from durable 6061 aluminum and CNC - machined to perfection. Each ferrule arrives with a Viton O - ring installed and ready for fabrication. The Mishimoto Quick Release Clamp Weld Ferrules are available in 2.5in or 3in diameter options and include the Mishimoto Lifetime Warranty