Set di ricambio per O-ring MB 405 / 407 Set di 2 i pezzi

Keep your gas train sealed and safe with this replacement O-ring set designed for MB 405/407 series. The set includes two pieces, ensuring you have the necessary seals for maintenance or repair of your boiler or burner system. Proper sealing prevents gas leaks and maintains system efficiency, making this an essential component for any heating equipment service kit.