Adjustable Type 301 Stainless Steel repair clamps repair splits, pin holes or punctures in pipe or tubing. This handy tool is uniquely faced with expanded PTFE which is the most effective seal for all common chemicals and is food grade acceptable. The clamp conforms to most irregular surfaces and controls most pressures with simple hand-tightening. Adjustable to fit pipe and tube sizes from 1/2” to 6”. Combine clamps to fit larger sizes. -10 clamps per case.