High-Performance 2.1" Airflow Controller Pipe Section for HVAC Systems - Perfect for Ductwork, Ventilation & Airflow Regulation in Homes and Commercial Buildings

Compatible with the small size Winnerwell stoves with 2.1” pipes, the Winnerwell 2.1” Airflow Controller Pipe Section features an integrated damper for adjusting airflow and burn rate in your stove. Available as a replacement if the Airflow Controller Pipe Section that came standard with your stove becomes lost or damaged.