The OBO BETTERMANN electronic Part 107 F PG16 with Gasket is a polyethylene device specifically designed for security and safety applications. Its dimensions include a diameter of 1.8mm, an inner diameter of 21.8mm, and an outer diameter of 27mm. It is secured using the PG16 fastening system and is used to join different materials with a secure, reliable seal. The Part 107 F PG16 is suitable for use in many applications such as weatherproofing, electrical insulation, and protection from dust and water.