O-ring 29.75x3.53 red De Dietrich 721397400

This red O-ring with dimensions 29.75x3.53 mm provides a reliable seal in various boiler and burner applications. It prevents gas or fluid leaks, ensuring safe and efficient operation of your heating equipment. As a common boiler spare part, it is essential for maintaining pressure integrity and preventing energy loss. Suitable for routine maintenance and repair of burner spare parts.