Reviews Duct Damper

RKI 4" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct

  • Back draft damper for insertion into 4 inch ventilation ducts. The backflow damper RKI 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 outside 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, dryers, exhaust, extractor or range hoods, heating systems, vents and other residential, commercial and industrial HVAC applications.
  • FUNCTIONALITY: 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 can penetrate the ventilation pipe from the outside..
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Speculations on the Fourth Dimension Selected Writings of Charles .H Hinton

  • The Listed size 12"x 8" is for inside duct opening measurement (duct hole), actual outside dimension is 13.75" X 10".
  • All plastic construction with 1/2" fin spacing for high air flow with rust proof feature perfect for areas with high moisture.
  • Three way air deflection design with bright white face and black damper in the back.
  • Multi-shutter damper with easy handle to adjust desired amount of air flow.
  • Two screw holes on each side with two screws included.
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Air King EB36SS California Title 24 Acceptable Essence Under Cabinet Range Hood, 36\

  • Engineered for extremely quiet operation to keep annoying fan noise to a whisper.
  • Can be mounted with vertical or horizontal ducting using included duct collar and back draft damper for 3 1/4" x 10" ducting.
  • Can be mounted with 7" round ducting using included duct collar and back draft damper.
  • Can be installed in a ductless format with charcoal odor filters sold separately.
  • Includes 18 watt Gu24 base fluorescent lamp about as bright as 150 watt incandescent bulb.
  • Also includes 4 watt night light socket (bulb not included).
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HVAC Duct Start Collar, 12\ Round Snap Together Sheet Metal

  • 4" Plastic inline round duct connector with backdraft damper..
  • Outside dimension of the duct fits 4" inch flex or solid ducting pipe..
  • Assembly: Press on chosen duct - flexible or straight - and use montage glue. tape or steel clamps tighten the connection..
  • Connect dryer duct, exhaust or any other duct that needs only one way airflow with this backdraft preventer to ensure required air direction, and remove polluted air from accessing habitable areas..
  • perfect for Heating. cooling or air conditioning - HVAC. bathroom and kitchen air exhaust. Heat-resistant from: 5 °F to 160 °F..
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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....
  • 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....
  • Designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial....
  • 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....
  • 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....
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Duct Reducter 8 to 6 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems

  • 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 6 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat.
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Broan PM390 Power Pack Range Hood Insert, Silver

  • 6-Inch round duct connector/back draft damper. Designed to fit flush with the bottom of a cabinet or custom hood installation. Also designed to be used with Broan’s “Box” or “T” design custom liners..
  • Max Sones/100 CFM 1.5. Rated Voltage : 120 V.
  • HVI rated 500 CFM, operates at 9.0 sones.
  • Improves ventilation and lighting over your stove.
  • 390 CFM and 6 sones. The choice of 6 inch round duct (includes damper and adapter) or non-ducted discharge allow you to make the right installation decision for your home.
  • HeatSentry automatically turns blower to high speed when excess cooking heat is detected.
  • Recommended for use with LB30, LB36, LT30, and LT36 liners (purchase separately).
  • Depth 11-1/4″, Height 9-5/8″ and Width 20-1/2″ (inches).
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Backdraft Exhaust Damper Seal 4 Inch by Calimaero One Size Fits All 4 Duct Backdraft Damper Gravity Powered Made in Germany 4 Inch HVAC Damper Dryer Vent Valve Keep Cold Air Out

  • PRODUCT FEATURES This 4inch damper vent air blocker does what it is designed to do. It prevents outside air from entering back into your house via dryer, bathroom fan, and grow tent. You will be very pleased with the quality, functionality, value, and ease of installation of this product..
  • EASY INSTALLATION The 4 inch backflow preventer is easy to install. You will only cram these in the 4" duct and the rubber flap will seal off drafts coming in from your dryer vent or bathroom exhaust fan. Make sure the flaps open away from the ventilator. The outer rubber ring creates a seal around the strong plastic body giving you the perfect vent damper..
  • FLEXIBLE This backdraft damper's main recycled plastic part is small enough to fit into almost all PVC, metal, and other ducts with 4 inch size. No need to buy multiple products to find the one that works. Purchase with ease and relax in your draft free living space..
  • CONVENIENT This 4 inline damper duct valve gummi flaps are easy to open for almost all dryers or booster fans. The lack of moving spring will ensure a long lifespan that will save you time and money. As the product ....
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AC Infinity 6\ Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6” 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 6 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat.
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AC Infinity 4\ Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” 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 4 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat.
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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.
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Three-way plastic side wall/ceiling register in white 14 w X 6 h for duct opening outside dimension is 15.75 w X 8 h

  • The Listed size 14"x 6" is for inside duct opening measurement(the duct hole), actual outside dimension is 15.75" X 8".
  • All plastic construction with 1/2" fin spacing for high air flow with rust proof feature perfect for areas with high moisture.
  • Three way air deflection design with bright white face and black damper in the back.
  • Multi-shutter damper with easy handle to adjust desired amount of air flow.
  • Two screw holes on each side with two screws included.
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8 Round Take-Off Collar w/Damper 26 ga.

  • Special Features: Pre-sealed / Low Leakage Hardware.
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