6 inch Diameter Damper Kit;Allows the operator to alter the amount of air drawn through the venting system, controlling the stoves combustion;Must be installed directly on stoves flue outlet where applicable;When handle is in horizontal position the damper is closed, reducing combustion;When handle is in vertical position the damper is wide open and there is no reduction of combustion

• SELKIRK CORP DSP6DK-1 Damper Kit, 6-Inch

SELKIRK CORP DSP6DK-1 Damper Kit, 6-InchTV Non-Branded Items (Home Improvement)