Bouchon isolant De Dietrich 7624052

An insulating plug is a small yet vital component used to seal openings or passages in heating equipment, preventing heat loss and maintaining system efficiency. It is often used in burner or boiler assemblies to block unused ports or access points. Made from heat-resistant material, this plug ensures a tight seal that withstands high temperatures. Replacing missing or degraded insulating plugs helps keep your system operating safely and efficiently.