O-ring 18x3 (10 ps) De Dietrich 7723713

The O-ring 18x3 is a standard sealing ring designed for use in heating systems and burner assemblies. With an 18 mm outer diameter and 3 mm cross-section, it fits many common applications where a reliable seal is required. This O-ring helps prevent leaks in gas or water connections, contributing to the overall efficiency and safety of your boiler or burner. Whether you are repairing a gas valve or a pump, this O-ring is a simple yet crucial part for restoring proper function.