Vibrant 1491 3" Stainless Steel V-Band Flange Assembly V-Band Flange Assemblies are a popular and effective alternative to traditional flanged or slip fit tube connections. They work very well in operating conditions involving stress, vibration and extreme temperature fluctuations. The V-band clamp design allows for a gasket free seal and the quick release feature of these clamps makes swapping parts at the track quick and easy. Vibrant Performance V-band flange assemblies feature a unique "Male/Female" design to ensure proper alignment of the flanges inside the clamp. each assembly consists of two (2) V-band flanges and one (1) Quick Release V-band clamp. Aluminum V-band flange assembly for 3" OD tubing (Part #11491) now available, consisting of 2 aluminum flanges and a stainless steel V-band clamp.