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Best Air Duct Damper

Genesis & The Opening of the Way

  • The Listed size 12"x 8" is for inside duct opening measurement (the duct hole) , actual outside dimension is 13.75" X 9.75".
  • Stamped Face Steel Construction with 1/2" fin spacing for high air flow.
  • Multi-shutter damper with easy handle to adjust desired amount of air flow.
  • Individually shrink wrapped with card board pad in the back for extra protection.
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Broan 8" Universal Automatic Make-Up Air Damper with Pressure Sensor Kit

  • 8″ Universal Automatic Make-Up Air Damper with Pressure Sensor Kit.
  • Interlocked make-up air damper systems meet IRC Code requirements for make-up air with range hoods over 400 CFM.
  • Interlocked make-up air systems avoid wasted energy associated with barometric solutions and do not let unwanted air into the home during heating or cooling activities so air pressure is equalized for a well-balanced environment.
  • Fresh air wall caps are required for use with Make-Up Air Dampers.
  • Interlocked make-up air dampers provide outside air when required to keep the air in the home fresher by allowing the range hood to operate at optimum levels.
  • Balance indoor air pressure by providing interlocked make-up air without requiring a direct wire connection between the range hood and the damper.
  • Instead a sensor is attached to the exhaust duct to detect if the range hood is operating.
  • Slave dampers (MD6S, MD8S or MD10S) are interlocked to the main automatic or universal make-up air damper and open in unison for synchronized operation..
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Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper, UL Listed 24VAC/20VA Plug-in Transformer Included, Compatible with Any 24 Volt Thermostat, Normally Open – 6', Silver

  • ECONOMIC SOLUTION –Protect your comfort & your wallet by limiting heating and cooling expenses in your space. This cost-efficient zone damper limits the need for excessive HVAC use and keeps your heating and air conditioning costs low over time. With a 3-year manufacturer’s warranty, this zone damper is built tokeep you comfortable year after year..
  • TOTAL ZONE CONTROL –This ZoneMaster gives you complete individual control over the climate in your space. Customize and maintain the temperature in specific rooms of your home with these zone dampers. Easily integrate it with an existing zone controller system!.
  • FRESH AIR INTAKE – Improve the quality of air in your home by installing a fresh air intake system with a Suncourt motorized airflow damper. Once damper is closed, it will block drafts, airflow and odors from flowing through. Suncourt’s dampers boast a patent-pending coupler with 0°- 90°adjustment capabilities, making them perfect for fresh air intake applications..
  • ENERGY EFFICIENT DESIGN – Take control of your comfort and preserve energy by using these automated duct dampers. When power is not supplied, the damper stays open allowing for air to flow through..
  • UL LISTED 24 VAC TRANSFORMER INCLUDED - Simple and user-friendly, this damper....
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Empire Barrel Blocker Condom Cover Sleeve Sock Protector Black

  • STEEL DAMPER ATTACHED - These vent covers for home floor have sturdy steel construction, powder-coated steel damper attached for durability, longevity, are smooth, shiny, and have no sharp edges. These air vents are crafted for long trouble free operation, rigid extra heavy duty to withstand constant walk on situations.
  • EXCELLENT AIR FLOW - The metal dampers in these air vent covers provide easy unrestricted air flow as compared to the ones with fragile plastic dampers. The metal lever of these heat register covers have sufficient resistance to keep the fins in position allowing you to direct the air flow as required.
  • EASY INSTALLATION - Simply remove the old register vent cover and place the new one in the standard duct opening. To determine size needed, measure air duct opening rather than old register. These vents are not suitable for ceiling or wall applications. No screws or tools are required to install these floor register covers.
  • QUALITY PACKAGING - The air register covers are very carefully first shrink wrapped, then bubble packed, and finally backed with cardboard to prevent any damage during transit.
  • HIGH QUALITY FINISHING - These modern floor vents are crafted from 2mm thick steel, have very high quality lacquer coating to prevent any chippin....
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Draft Blocker 4 Inch - Backdraft Damper - Draft Stopper - Backflow Preventer - Vent Deflector (4'' Inch)

  • Back draft damper is made for insertion into 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.
  • Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications.
  • 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..
  • 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.
  • Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ....
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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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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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Draft Blocker - 4'' Inch Backdraft Damper Duct - Draft Stopper - Backflow Preventer - Inline Fan Vent - Vent Deflector (4'' Inch)

  • Back draft damper is made for insertion into 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.
  • Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications.
  • 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..
  • 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.
  • Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ....
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Dundas Jafine CHK100ZW6 Vents, 4-Inch, White

  • Professional Series, 4" Wide Mouth Cap With 4" Diameter Aluminum Pipe.
  • Snug fit back draft damper helps prevent cold air, snow or rain from entering the home.
  • Damper has been designed for superior noise reduction.
  • Removable pest screen that helps to keep pests out and allows for easy cleaning of the duct.
  • Snap on pipe to cap assembly that eliminates the need for lint trapping staples.
  • UV resistant coating to prevent the cap from discoloring.
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Shoemaker Manufacturing, Bronze, 4x10, Premium Floor Register, All Steel Heavy Duty Vent Cover

  • DURABLE: Rolled edge and stabilizing center rib offer extensive durability for years to come.
  • NO TOOLS REQUIRED: Our 4 x 10-inch Bronze-colored floor register fits right into your duct opening, no tools required.
  • QUIET OPERATION & EFFICIENT AIR DISTRIBUTION: Our 4 x 10-inch Bronze Includes a damper mechanism that provides quiet operation day and night.
  • clean lines and thoughtful design ensure air circulation is efficient and consistent.
  • UNSURPASSED CRAFTSMANSHIP: High-gauge steel with close attention to detail displays our dedication to craftsmanship.
  • EASY SIZING FOR A PERFECT FIT: Measure your duct opening to find the perfect floor grille size. Remove your existing register or vent cover and measure the height and width of the opening. The dimension size provided in the specs for this product refers to the size of your duct opening.
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Empire Register Co, Vent Cover - 4x10 inch, Honeycomb Design, Brushed Nickel Finish, Heavy Duty Floor Vent Covers, Metal Damper Attached. Vent Covers for Home Floor only.

  • STEEL DAMPER ATTACHED - These vent covers for home floor have sturdy steel construction, powder-coated steel damper attached for durability, longevity, are smooth, shiny, and have no sharp edges. These air vents are crafted for long trouble free operation, rigid extra heavy duty to withstand constant walk on situations.
  • EXCELLENT AIR FLOW - The metal dampers in these air vent covers provide easy unrestricted air flow as compared to the ones with fragile plastic dampers. The metal lever of these heat register covers have sufficient resistance to keep the fins in position allowing you to direct the air flow as required.
  • EASY INSTALLATION - Simply remove the old register vent cover and place the new one in the standard duct opening. To determine size needed, measure air duct opening rather than old register. These vents are not suitable for ceiling or wall applications. No screws or tools are required to install these floor register covers.
  • QUALITY PACKAGING - The air register covers are very carefully first shrink wrapped, then bubble packed, and finally backed with cardboard to prevent any damage during transit.
  • HIGH QUALITY FINISHING - These modern floor vents are crafted from 2mm thick steel, have very high quality lacquer coating to prevent any chippin....
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Chess Openings the Easy Way

  • The Listed size 12"x 6" is for inside duct opening measurement, actual outside dimension is 13.75" X 7.75".
  • Stamped Face Steel Construction with 1/2" fin spacing for high air flow.
  • Multi-shutter damper with easy handle to adjust desired amount of air flow.
  • Individually shrink wrapped with card board pad in the back for extra protection.
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Two-way plastic side wall/ceiling register in white 10 w X 6 h for duct opening outside dimension is 11.75 w X 8 h

  • The Listed size 10"x 6" is for inside duct opening measurement, actual outside dimension is 11.75" X 8".
  • All plastic construction with 1/2" fin spacing for high air flow with rust proof feature perfect for areas with high moisture.
  • Two 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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