O-ring 12.50X2.50 De Dietrich 721643700

This O-ring with dimensions 12.50x2.50 mm is a small but crucial sealing element used in many boiler and burner assemblies. It prevents gas or fluid leaks at connection points, ensuring the system operates safely and efficiently. Commonly needed during maintenance or repair of heating equipment components, this O-ring provides a reliable seal. Always check compatibility with your specific part, as proper sealing is key to preventing issues in gas burner parts and other applications.