B&K 3 in. Galvanized Stainless Steel Pipe Repair Clamp | Stine Home + Yard : The Family You Can Build Around™

A repair clamp is essentially a pre-rolled piece of stainless steel that is lined with rubber inside. To repair a pipe, the repair clamp is simply placed over the area that is leaking and then tightened with the welded bolts and nuts to keep the clamp in place.