The Noritz Packing for Exhaust Box Insulators (DMBL004-B) is designed to enhance the efficiency and safety of your water heating system. This packing material is constructed from high-quality, heat-resistant materials, ensuring durability and long-lasting performance. It provides effective insulation around exhaust components, preventing heat loss and improving overall system efficiency. Easy to install, this packing is essential for maintaining optimal performance in your Noritz water heater. Ideal for both new installations and repairs, it supports safe and efficient operation.