Top 10 ALDES 4 inch Round Spring Loaded Backdraft Damper – Temperature Controllers

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1. Klimapartner

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Backdraft Damper Shutter Inline for 4 Inch Dryer Duct for Retrofitting 4 Inch Ducting Prevents Unwanted Drafts in Metal Ducts in Line Draft Blocker

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Klimapartner #ad - This will help weaker booster fans to push open the 4 inch backflow preventer dampener. Bathroom vent draft blocker or exhaust fan shutter is INSTALLED by pushing the hvac damper into the duct, blades open away from exhaust air.

Opposing blade damper 4 backdraft should be interested behind the bathroom fan or inline fan. 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.44

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. The spring needs at least 15 Pa to open correctly.
BrandKlimapartner #ad
Manufacturerklimapartner #ad
Height3.94 Inches
Length2.05 Inches
Weight0.33 Pounds
Width3.94 Inches
Part Number4054503017276

2. ALDES

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Professional Grade, ALDES 6 Inch Round Spring Loaded Backdraft Damper

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ALDES #ad - Minimal pressure to open. Highest rated Premium Airflow Control Backdraft Dampers. Extremely easy and secure inline duct insertion installation. Maximum automatic back flow protection. Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing. 004 to 008 in. W. G. May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F Fahrenheit. Available in 4", 6", 10", 7", 5", 8", 12", 14" and 16".
BrandALDES #ad
ManufacturerAmerican Aldes #ad
Height5.75 Inches
Length2.5 Inches
Weight0.44 Pounds
Width5.75 Inches
Part Number99 025
ModelCECOMINOD046977

3. neverest

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Neverest RK 4" Professional Backdraft Shutter Damper Connector Duct

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neverest #ad - Cannot be used with plastic ducts as the sizes are different. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally. The backflow flap opens and closes automatically at low air volumes.

Installation: the backflow flap is installed by inserting it into the ventilation pipe until it stops. The backdraft shutter is installed so that the damper blades open only in the outflowing air direction. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically. Designed for use in air conditioners AC, extractor or range hoods, exhaust, heating ducts, dryers, vents and other HVAC applications.

Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. 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. The backflow damper prevents the ingress of cold or warm air and wind from entering through the ventilation duct.
Brandneverest #ad
Manufacturerneverest #ad
Height3.94 Inches
Length3.46 Inches
Width3.94 Inches
Part Number40545030039031

4. ALDES

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7 Inch Round Spring Loaded Backdraft Damper by American ALDES

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ALDES #ad - Minimal pressure to open. Highest rated Premium Airflow Control Backdraft Dampers. Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing. W. G. Maximum automatic back flow protection. Extremely easy and secure inline duct insertion installation. 004 to 008 in. May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F Fahrenheit. Available in 4", 7", 12", 10", 5", 6", 8", 14" and 16".
BrandALDES #ad
ManufacturerAmerican Aldes #ad
Height6.75 Inches
Length2.5 Inches
Weight0.56 Pounds
Width6.75 Inches
Part Number99 035

5. Swess

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Backdraft Butterfly Damper Draft Stopper Backflow Preventer 4" / 100mm, Balancing Barometric Damper

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Swess #ad - When installed horizontally, the position of the spring also needs to be kept horizontal to achieve the best use effect. Function: balancing barometric damper automatically turns on and off when the air volume is low to prevent cold or warm air from entering through the ventilation duct.

A spring foam strip is designed inside to effectively prevent the blade from shaking. Note: the reverse flow valve can be inserted into a flexible or non-flexible ventilation pipe. Compatible: suitable for air conditioners, heating ducts, exhaust devices, dryers, range hoods, vents and other HVAC applications.

Due to different sizes, it cannot be used with plastic ducts. Easy to use: backdraft butterfly damper can be easily installed in the ventilation duct. Material: draft stopper backflow preventer is made of galvanized steel, the 2 blades are made of aluminum, the shaft and spring are made of stainless steel. It can withstand temperatures from 14 to 140°F, and has a long service life.
BrandSwess #ad
ManufacturerSwess #ad

6. ALDES

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Professional Grade, ALDES 5 Inch 5" Round Spring Loaded Backdraft Damper

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ALDES #ad - Available in 4", 12", 5", 7", 6", 8", 10", 14" and 16". May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F Fahrenheit.

004 to 008 in. Extremely easy and secure inline duct insertion installation. W. G. Highest rated premium airflow Control Backdraft Dampers - Used Specifically for 5" Duct Size Applications. Minimal pressure to open. Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing. Maximum automatic back flow protection.
BrandALDES #ad
ManufacturerAmerican Aldes #ad
Height4.75 Inches
Length2 Inches
Weight0.31 Pounds
Width4.75 Inches
Part Number99 024

7. ALDES

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Professional Grade, ALDES 8 Inch Round Spring Loaded Backdraft Damper

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ALDES #ad - Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing. Highest rated Premium Airflow Control Backdraft Dampers. 004 to 008 in. W. G. Extremely easy and secure inline duct insertion installation. Maximum automatic back flow protection. May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F Fahrenheit. Minimal pressure to open. Available in 4", 6", 10", 8", 12", 5", 7", 14" and 16".
BrandALDES #ad
ManufacturerAmerican Aldes #ad
Height7.6 Inches
Length2.75 Inches
Weight0.63 Pounds
Width7.6 Inches
Part Number99 026

8. ALDES

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Professional Grade, ALDES 12 Inch Round Spring Loaded Backdraft Damper

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ALDES #ad - Maximum automatic back flow protection. 004 to 008 in. May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F Fahrenheit. Highest rated Premium Airflow Control Backdraft Dampers. Minimal pressure to open. Extremely easy and secure inline duct insertion installation. Available in 4", 6", 8", 10", 12", 5", 7", 14" and 16". Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing. W. G.
BrandALDES #ad
ManufacturerAmerican Aldes #ad
Height11.75 Inches
Length6.25 Inches
Weight2.75 Pounds
Width11.75 Inches
Part Number99 028

9. ALDES

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Professional Grade, ALDES 14" Round Spring Loaded Backdraft Damper

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ALDES #ad - W. G. Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing. Highest rated Premium Airflow Control Backdraft Dampers. Extremely easy and secure inline duct insertion installation. May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F Fahrenheit. Maximum automatic back flow protection. Available in 4", 7", 8", 5", 10", 6", 12", 14" and 16".004 to 008 in. Minimal pressure to open.
BrandALDES #ad
ManufacturerAmerican Aldes #ad
Height13.75 Inches
Length6.25 Inches
Weight4.25 Pounds
Width13.75 Inches
Part Number99 036

10. VIVOSUN

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VIVOSUN 4 inch Inline Duct Fan 100 CFM, Low Noise & Extra Long 5.5' Grounded Power Cord, HVAC Exhaust Intake Fan

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VIVOSUN #ad - Specs. Diameter 4 inch, speed 2930 rpm, voltage 110/120V, Air Flow 100 CFM, Power 12W. Upgraded advantages: superior balanced blades for long service life & quiet operation; Motor features a permanently lubricated bearing that operates quietly and requires no maintenance; Portable and lightweight; Sufficient 5.

5' grounded power cord. If any other materials/particles get into the duct fan and get the blade stuck, clean it up, users are to turn off the power immediately, turn the power back on when handled properly. Household applications: help to boost airflow in HVAC units to remove exhausts and odors from bathrooms & workshops and ventilate basements & attics, etc.

Note: max operating temp of motor is 130℃ / 266℉; max ambient temp is 60℃ / 140℉. Grow room applications: used as intake fan to bring fresh air into grow rooms; Also used as exhaust fan in smaller setups with LEDs or Lights under 400W.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad
Part NumberCECOMINOD070342
ModelCECOMINOD070342