Compatibility: Compatible with Riello burners, ensuring proper sealing and reliable operation in heating systems. Durable Material: Made from quality rubber to withstand heat, pressure, and fuel exposure. Precise Dimensions: Each O-ring measures 79×85×3 mm for accurate fit and leak prevention. Reliable Sealing Performance: Provides effective sealing to prevent leaks and maintain burner efficiency. Easy Replacement: Flexible and simple to install, making maintenance and repair quick and hassle-free., Manufacturer: Briny River