The Rheem AS45940 Burner Tube/Inner Door Assembly is a critical component for efficient heating operation. This assembly is designed to enhance combustion performance, ensuring reliable system functionality. Made from high-quality materials, it meets safety and durability standards. The design allows for easy installation and compatibility with various Rheem models, making it a versatile choice for replacements. Upgrade your heating system with this essential burner tube and inner door assembly to maintain optimal performance.