neverest RK 4" Professional Backdraft Shutter Damper Connector Duct
neverest
1524 ratings
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1
Product Features
- The backflow damper prevents the ingress of cold or warm air and wind from entering through the ventilation duct. The 4 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.
Imperial VT0501 4-Inch Exhaust Dryer Vent Cap, with Intake Hood Conversion, 1-Pack, 4 Inch, White
Imperial Manufacturing
165 ratings
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2
Product Features
- Ideal for dryer and bath fan venting
- Designed for maximum airflow and energy efficiency
- Damper prevents back-draft and heat loss
- Designed for quiet operation
- 1-Pack of Imperial model VT0501; Material: Aluminum
neverest - RKI 4" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct
klimapartner
1022 ratings
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3
Product Features
- 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.
- INSTALLATION: 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.
Wall cap fits 3” or 4” round duct includes 3” to 4” round transition included for versatility
NuTone
430 ratings
More info
4
Product Features
- Model number: 885BL
- Country of Origin: United States
- No batteries required
- Brand name: Nutone
Builder's Best 84035 Galvanized Steel Roof Vent Cap with Damper & Removable Screen, 4" Diameter Collar, Black (New 2021)
Builder's Best Inc.
95 ratings
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5
Product Features
- Extremely Durable: This is a heavy duty 26 gauge galvanized roof vent hood with a high performance polyester powder coated finish.
- Protection Against Corrosion: Our vent caps are ASTM B117 tested for anti-corrosive properties, showing very little or no signs of corrosion on our high performance polyester powder coated galvanized steel surface. Other leading and foreign brands have little or no corrosive protection.
- Features: Riveted construction; does not use caulk. Includes pre-drilled holes for easy mounting. Vent also comes with a flapper (damper) that prevents back drafts.
- Ideal for bathroom or kitchen vents. Screens are removable so that caps can be used for venting clothes dryers as well.
- Quality made in the USA by Builder's Best, Inc. Builder's Best brand is a US registered trademark.
4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector Silver
Kikerike
108 ratings
More info
6
Product Features
- 【Material】The 4 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel.
- 【Installation】The backdraft damper 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.
- 【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use.
- 【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications.
- 【Note】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.
4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 6 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans
Honoson
38 ratings
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7
Product Features
- Practical design: backdraft damper has a smooth-running spring and an internal foam strip to keep the blades from rattling; The backflow flap opens and closes automatically at low air volumes
- Reliable materials: galvanized steel damper is made of quality galvanized steel, the flap leaves are made of aluminum, and the axis and spring are made of stainless steel, which all are strong and serve you for a long time
- Easy to install: the backflow flap is installed by inserting it into the ventilation tube until it stops; The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally; And it can be installed horizontally or vertically
- Wide range of usages: these draft blocker set can be widely applied in exhaust fans, extractors, range hoods, heating ducts, vents and other residential and industrial applications
- Package includes: the package comes with 2 piece backdraft damper and 6 pieces duct clamps; The backdraft damper is about 3.46 inches long, 3.9 inches in diameter; 6 steel duct clamps can secure the backdraft damper to your ventilation tube or other duct openings; Please fasten the loop with screws
Hon&Guan 4 inch Blocker Backdraft Damper, 4 inch Ducting Draft Blocker Insert Backflow Preventer Dryer Vent Hose Duct Draft
Hon&Guan
22 ratings
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8
Product Features
- 【Material】The 4 inch backdraft damper and the flap leaves is made of a Galvanized steel, the Axis are made of aluminum, while the spring are made of carbon steel.
- 【Installation method】The position of the spring should be horizontal for horizontal installations so that it can open and close optimally
- 【Wide applications】Back draught valves can be inserted into ventilation ducts which are flexible or non-flexible. Designed for use with range hoods, bathroom fans, kitchen and other home HVAC applications.
- 【Lightweight valve wings】The valve wings open under the pressure created by the airflow; when the air flows in the opposite direction, it is automatically closed under the action of the spring, so as to cut off the flow.
- 【Backdraft Shutter】Hon&Guan Draft Blocker designed to improve ventilation by preventing air from re-circulating when the fans are not in use, rubber ring ensure 100% closure and quiet closing.
calimaero VKE 4" Inch Dryer Vent Cover Stainless Steel Grille Dryer Vent Exterior Wall Vent Moving Flaps
calimaero
2817 ratings
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9
Product Features
- Exterior wall vent cover 4 inch with anti-draft gravity flaps is made of brushed anti-rust and corrosion resistant stainless steel with countersunk screw holes, 4 screws included. The rubber gasket provided creates a tight seal between the vent and wall.
- Duct vent 4 inch has particularly easy moving lamellas for low air volume flows. The outside house vents lamellae prevents most cold air from entering. The dryver vent cover opens automatically by means of overpressure.
- Stainless steel exhaust vent can be easily installed by inserting the nozzle into the ventilation duct. Put the silicon gasket onto the outer edge of the exterior wall vent cover frame before mounting the dryer exhaust vent cover. The vent dryer cover is then fixed to the wall with the four supplied stainless steel screws.
- 4 inch exhaust vent cover louvered close automatically when not in use and the range hood outside vent stops unpleasant odors, noises, animals, insects or rain flowing back through the dryer exhaust vent cover flap
- Steel dryer vent with a year guarantee and customer satisfaction being our main priority you cant go wrong in purchasing this stainless steel louvered vent.
Vent Systems 6'' Inch Backdraft Damper - Backflow Shutter - Heavy-Duty Inline Springs Loaded - One-Way Airflow Ducting Insert - Inline Fan Vent Deflector
Vent Systems
215 ratings
More info
10
Product Features
- Back draft damper for insertion into 6 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.
