The LP to Natural Gas Conversion Kit for the Bradford White D4403S6FBN-337 model is designed for efficient conversion from LP to natural gas. This kit includes all necessary components for a safe and effective installation, ensuring compliance with industry standards. Constructed from durable materials, it is built to handle high pressure and temperature, providing reliable performance. Perfect for residential applications, this conversion kit simplifies the transition to natural gas, enhancing the efficiency and functionality of your heating system.