LED-THROUGH GASKET 50-75MM 5PCS

Self-adhering Opal penetration seal is designed to seal openings created for air and vapor barriers, such as those made for ventilation ducts. The collars are pre-fitted to the most common duct sizes, eliminating the need for cutting. Additionally available is a collar, known as a "blind" seal, into which you can create a custom opening for small pipes or electrical cables. The Opal penetration seal is made of highly flexible and long-lasting EPDM foam rubber and adheres firmly to the substrate thanks to its adhesive surface. This product description is an automated translation of the original Finnish description.