PROLINE 10-Inch Round Backdraft Damper for Range Hoods and Ventilation Ducts, Spring-Loaded Aluminum Blades, Rubber Gasket Seal, Horizontal or Vertical Installation

Why it's a great deal

• PREVENTS UNWANTED BACKDRAFTS: Spring-loaded aluminum shutter blades open easily with outgoing airflow and close automatically when the range hood or exhaust fan turns off, helping prevent outside drafts from entering the ductwork.

• TIGHT RUBBER GASKET SEAL: The durable outer rubber gasket creates a snug connection inside the ventilation duct, helping reduce air leakage, energy loss, and unwanted drafts for improved indoor comfort.

• LIGHTWEIGHT ALUMINUM CONSTRUCTION: Made from high-quality aluminum for dependable ventilation performance without adding unnecessary weight to the duct system. Suitable for residential and commercial exhaust applications.

• DESIGNED FOR 10-INCH DUCTWORK: Measures 9.75 inches in diameter by 5 inches high and is designed to connect with nominal 10-inch round ventilation ducting. The raised outer guide ring helps position the duct securely around the damper.

• HORIZONTAL OR VERTICAL INSTALLATION: Can be installed in either orientation. For horizontal installations, keep the blade axis vertical and position the damper according to the airflow-direction markings for proper operation.

• SIMPLE, SECURE CONNECTION: Slide the ducting over the damper and secure it using appropriately sized clamps, or wrap the connection with aluminum HVAC tape to help create an airtight, leak-resistant seal.