2 1/4" ID Stainless Band Clamp. Works great for street rod/show car applications requiring a clean, neat appearance and moderate clamping capability. When installing, tighten with a 1/4" ratchet and have the overlapping pipe slotted to allow it to compress. For high load applications requiring more clamping force, see Stainless Works Accuseal clamps or saddle clamps.
All warranty questions, claims or otherwise should be directed toward the manufacturer, Dart.