Our Inspection Plugs / Seals are designed and manufactured in Non-Destructive Testing (NDT) programs on insulated and non-insulated pipes and vessels. These Inspection Plugs consists of an elastomer sleeve and a metal cap with handle, lanyard and locking ring. They are easy to remove & reuse. Inspection Windows are manufactured in Stainless Steel in 2.5 Inch, 3 Inch and 5 Inch sizes. Other sizes are available on request.