Item Model Number: 8” to 24” diameter / rectangular options available Color: White / Metallic Coverage: HVAC ducts, ventilation systems, air balancing, exhaust systems, industrial and commercial air control Included Components: Damper blade assembly, frame, and adjustment mechanism Material: Galvanized Steel / Aluminum / Stainless Steel (as per application) Brand: HVAC Damper Series Item Thickness: Blade thickness 20–22 gauge (approx. 0.8 mm – 1 mm) Recommended Use for Product: Airflow regulation, zone control, pressure balancing, and shut-off control in HVAC and ventilation systems