The Rheem Gas-Air Module 456 Na is an essential component for the efficient operation of Rheem gas water heaters. This module is designed to optimize the air and gas mixture for combustion, ensuring maximum efficiency and performance. Constructed from high-quality materials, it is built to withstand the rigors of daily use. The module is compatible with various Rheem models, making it a versatile choice for replacements. Its compact design allows for easy installation, and it meets all necessary safety standards. This gas-air module is crucial for maintaining the efficiency and safety of your gas water heating system.