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The Best Dryer Vent Check Valve of 2021 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Dryer Vent Check Valve of 2021. Check our ranking below.

2,669 Reviews Scanned

Rank No. #1
Backdraft Damper Shutter Inline for 4 Inch Dryer Duct for Retrofitting 4 Inch Ducting Prevents Unwanted Drafts in Metal Ducts in Line Draft Blocker
  • 4 inch duct damper opens and closes AUTOMATICALLY, PREVENTING unwanted drafts and the duct valve for 4 inch ducting can be installed horizontally or vertically. Not for use in plastic ducts.
  • 4 inch damper housing is made of GALVANIZED STEEL and the dryer vent valve flaps are made of aluminium the butterfly damper axis and spring are made of stainless steel. PROFESSIONAL long life QUALITY is what the klimapartner brand stands for!
  • Backflow damper exhaust fan shutters are DESIGNED for use in AC units, installation in dryer ducts, bathrooms, STOPPING INFLOW OF AIR from range hoods and heating systems and prevent cold or warm air from entering back into the duct.
  • Bathroom vent draft blocker or exhaust fan shutter is INSTALLED by pushing the hvac damper into the duct, blades open away from exhaust air. The spring needs at least 15 Pa to open correctly.
  • Opposing blade damper 4 backdraft should be interested behind the bathroom fan or inline fan. This will help weaker booster fans to push open the 4 inch backflow preventer dampener.
Rank No. #2
Back Draft Blocker, Backdraft Damper Dryer Vent Hose, Inline Extractor Fan Vent Back Draught Shutter (4'' Inch)
  • Perfectly suited for ducting your Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood, Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker
  • Comes with balanced damper fully assembled, stops unpleasant odours, noises, or draughts flowing back through your duct
  • This backdraught shutter can be used as a part of a long duct run for a variety of purposes including whole house ventilation, passive stack vent, air conditioning, positive pressure, Tumble Dryer Venting, HVAC, and Heat Recovery Systems
  • White Plastic Extractor Fan Backdraught Shutter - Male Spigot - External diameter is ~ 124mm
  • Compatible with diameter 4 Inch. Easy to DIY!
SaleRank No. #3
Lambro 289W Dryer Vent Seal, 4"
  • Manufactured in United states
  • Easy to use
  • Highly durable
  • Model number: 289W
SaleRank No. #4
Deflecto Plastic Dryer Vent Draft Blocker, 4" Diameter, White (BD04)
  • Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker
  • Air flow from the dryer opens up the damper; gravity keeps draft blocker closed when dryer is not in use
  • Plastic construction; Calcium filled polypropylene has a melting point of 325 degrees F
  • Comes with balanced damper fully assembled
  • Easily attaches to vent pipe and clothes dryer duct
Rank No. #5
SAILFLO 4 Inch Wall-Mounted Exhaust Fan, 12W 130m³/h Ventilation Extractor with Anti-backflow Check Valve Chain Switch for Window Duct Glass Grow Tent Bathroom Vents - 6"×6" Grid Panel - Small Size
  • 【Upgraded fan】 When installed to glass or walls, it can be used to prevent dust, leaves, pollen, backflow with the wind-proof ABS sheet. The lattice filter can be removed and easy to clean. It is also easy for drawstring switches.
  • 【EP / Energy Saving】This ventilation fan adopts environmentally friendly ABS material which is light and not easily deformed, excellent heat resistance and durability. The consumption efficiency is only 12 watts, saving power. For 110V, the air volume is 130m³ / H in a specific environment, but please Note that the air volume varies depending on the environment.
  • 【Overheat protection and easy installation】Adopting an axial pipe fan that realizes optimal cooling and a sealed pure copper bearing motor, it generates less heat, has a longer operating time and longer life. The built-in overheat protection device cuts the contact when the motor overheats, and plays the role of power failure protection and double protection.
  • 【Durability / Use】Adopting sleeve bearing motor with excellent wear resistance and high quality copper enameled wire, adding imported shaft and high quality start capacitor, it can be used for a long time. Suitable for places where ventilation is required, such as kitchens, offices, stores, living rooms, bathrooms, and windows where air does not flow much or where the air is dirty.
  • 【Use Tips】If you have any questions during use, please do not hesitate to contact us by email. We will respond within 24 hours.
Rank No. #6
Back Draft Blocker, Backdraft Damper Dryer Vent Hose, Inline Extractor Fan Vent Back Draught Shutter (4'' Inch)
  • Perfectly suited for ducting your Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood, Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker
  • Comes with balanced damper fully assembled, stops unpleasant odours, noises, or draughts flowing back through your duct
  • This backdraught shutter can be used as a part of a long duct run for a variety of purposes including whole house ventilation, passive stack vent, air conditioning, positive pressure, Tumble Dryer Venting, HVAC, and Heat Recovery Systems
  • White Plastic Extractor Fan Backdraught Shutter - Male Spigot - External diameter is ~100 mm
  • Compatible with diameter 4 Inch. Easy to DIY!
SaleRank No. #7
Fantech 9800000 RSK-4 Backdraft Damper, 4" Duct
  • Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades
  • Spring loaded for positive closure
  • 4" Duct
Rank No. #8
HFS(R) Backdraft Damper 5" Height, 4" OD Inlet, 4" OD Outlet
  • 4-Inch Duct Splice Collar
  • Aluminum alloy blade blades
  • Using with intake or exhaust duct systems
  • Consult your local building codes for approved installation practices
Rank No. #9
Draft Blocker - 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 ducts as the sizes are different.
Rank No. #10
Soler & Palau CAR100 Backdraft Air Dampers
  • 4"/100MM steel backdraft damper
  • Package length : 5.0"
  • Package width : 5.0"
  • Package height : 5.0"

Last update on 2021-02-25 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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