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The Best 8 Backdraft Damper of 2021 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 8 Backdraft Damper of 2021. Check our ranking below.

2,783 Reviews Scanned

Rank No. #1
AC Infinity 8” Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8” Ducting in Range Hoods and Bathrooms Fans
  • An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.
  • Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.
  • Mounts horizontally or vertically to prevent backflow and debris from entering ducting.
  • Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.
  • Fit for 8 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat
Rank No. #2
HVAC OV 8" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades
  • Back-flow valve with 2 spring-loaded wings prevents the reverse airflow movement when the ventilation system is turned off
  • The valve wings open under the pressure created by the airflow and then automatically close with the spring work
  • The valve casing is made of galvanized steel and the wings are made of sheet aluminium
  • The valve is equipped with a special foam rubber filler reducing the noise level during its operation and ensuring the integrity of the system
  • Fit for 8" Duct Openings . An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications
Rank No. #3
Butterfly Backdraft Damper (8 Inch) (BD 8)
  • Backdraft damper with lightweight blades and foam closure shutter for quiet closure
  • Proven design to protect against backdraft in your appliance venting
  • Vertical or horizontal mounting, with one end crimped
  • Heavy-duty 26 gauge galvanized metal
  • Made in the USA
Rank No. #4
HFS (R) Backdraft Damper 5" Height, 8" OD Inlet, 8" OD Outlet
  • [MATERIAL]: The blades are made of aluminum alloy
  • [SIZE]: Duct splice ring diameter:8IN
  • [EASY TO USE]: According to the demand, the pipeline can be spliced to form the exhaust and air intake system
  • [ROTATING BLADE]: By adjusting the blade angle, the ventilation flow can be controlled, and it can also be used for wind protection
  • [APPLICATION]: It is used in kitchen, factory, food factory and other areas to form intake pipe or exhaust pipe system
Rank No. #5
Backdraft Damper Duct (8" inch / 200mm)
  • ✅ Excellent quality back draft dampers
  • ✅ Manufactured of heavy-gauge galvanized steel with heavy duty springs // Spring loaded for positive closure
  • ✅ Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades
  • ✅ They prevent back draft air when your fans are off
  • ✅ Ideal for use with intake or exhaust duct systems
Rank No. #6
Fantech 9800005 RSK-8 Backdraft Damper, 8" Duct
  • Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades
  • Spring loaded for positive closure
  • 8" Duct
  • Country of origin: United States
Rank No. #7
Vent Systems 8'' Inch Backdraft Damper - Backflow Shutter - Heavy-Duty Inline Springs Loaded - One-Way Airflow Ducting Insert - Inline Fan Vent Deflector
  • Back draft damper for insertion into 8 inch ventilation ducts. The backflow damper opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. The flap is suitable for retrofitting, since it is completely inside the duct
  • A tight sealing and fastening of the duct is achieved by the rubber strip attached to the inside of the draft blocker damper. The rubber seal prevents loud rattling when the flap blades open and close. The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel
  • Designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications. Best to use with VENT SYSTEMS hvac parts.
  • Duct draft stopper prevent cold air or wind from entering the ventilation pipe. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. This means that no cold air / wind or smell can penetrate the ventilation pipe from the outside.
  • The backflow Preventer valve is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation.
Rank No. #8
neverest RK 8" Backdraft Shutter Damper Connector Duct Professional
  • The backflow damper prevents the ingress of cold or warm air and wind from entering through the ventilation duct. The 8 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel, 3.5 inches deep and can withstand temperatures from 14 to 140 °F
  • Designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications
  • The backflow flap opens and closes automatically at low air volumes. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically
  • INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally. The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction.
  • Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different.
Rank No. #9
Hon&Guan 8 Inch Draft Blocker Backdraft Damper Inline Extractor Fan Vent Back Draught Shutter (200 mm)
  • Compatible with diameter 8 Inch.
  • Male backdraft shutter is lightweight & compatible with Hon&Guan ducting.
  • Easy DIY. Designed to provide anti back draught, and fit in between Solid Plastic Ducting, Flexible Ducting.
  • For use in domestic ventilation applications; kitchens, toilets,bathrooms & hydroponics.
  • Package Include: Vent Back Draught Shutter x 1
Rank No. #10
- 8" Inch Backdraft damper for straight or flex duct. bathroom exhaust fan. kitchen hood exhaust fan and different dryer fan backflow preventer. Steel damper with aluminum valve flaps.
  • Ø8 Inch steel backdraft damper with aluminum valve.
  • For use with the Ø8 Inch Round flexible or straight Pipe Ducting systems
  • Quick and easy to assemble - DIY Press on chosen duct - flex or straight - and by using montage glue. tape or steel clamps tighten the connection.
  • perfect for Heating. cooling or air conditioning - HVAC. bathroom and kitchen air exhaust.
  • Heat-resistant from: -22 °F to 400°F. / Perfect for indoor and outdoor use

Last update on 2021-06-15 / Affiliate links / Images from Amazon Product Advertising API

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