Galvanized Steel Ventilation Damper. Manual handle to regulate the damper opening-closing sensitivity.
Chimney Pipe Throttle Flue Liner Damper Ventilation Non Return Valve Shutter D
Chimney Pipe Throttle Flue Liner Damper Tube Non Return Valve Shutter Blade
Chimney Pipe Throttle Flue Liner Damper Tube / Non Return Valve Shutter Blade
Stainless Steel Fireplace Damper Ventilation Non Return Valve Flue Liner Shutter
Metal Throttle Valve Flue Liner Air Damper Tube Non Return Valve Shutter Blade
