121275 | STACK FLU BLOCK, M/R ECO L275F | Reznor

STACK FLU BLOCK, M/R ECO L275F The Reznor STACK FLU BLOCK, M/R ECO L275F is a crucial component for optimizing the performance of your heating system. This expertly engineered part is designed to effectively block airflow through the flue when the unit is not in operation. By preventing heat loss and ensuring proper draft conditions, the STACK FLU BLOCK enhances the efficiency of your heater, reducing energy consumption and lowering your operating costs. Its durable construction and precise fit guarantee a seamless integration with your Reznor heating system. Trust this reliable part to maintain optimal heating performance and maximize your system's efficiency. Our HVAC supply store offers the best prices and fast shipping for your products!