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Ducting
  1. Home
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  3. Building Supplies
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  5. Ducting
  6. Miuwauer 8 Inch…
Miuwauer

Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage

4.4
(8 Ratings)
Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹3,440₹5,190

You save ₹1,750 (34%)

34% off the seller list price

Qty
Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage — 8 Inch
8 Inch
₹3,440
₹5,190
In Stock

Doorstep delivery by 2 Nov - 4 Nov from USA

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Stop Unwanted Airflow & Save Energy

About this item

The Miuwauer 8 Inch Backdraft Damper is constructed from durable galvanized steel with stainless steel springs and blades, designed to prevent cold air and wind from entering your ventilation ducts. This damper ensures one-way airflow, automatically opening and closing with low air volumes thanks to its spring-loaded folding blades and airtight rubber gasket seal. It's an essential component for maintaining efficient HVAC systems, preventing backflow, and improving indoor air quality by stopping unwanted drafts when fans are not in use.

This backdraft damper is suitable for a wide range of residential, commercial, and industrial HVAC applications, including AC units, dryer vents, exhaust fans, range hoods, and heating systems. It can be inserted into both flexible and non-flexible ventilation ducts, offering versatile installation. The damper is designed for easy push-in installation and is temperature resistant up to 50°C, ensuring reliable performance in various conditions. Note that it is not compatible with plastic pipes of different sizes.

For Indian customers, this imported backdraft damper offers a reliable solution to prevent unwanted air leakage and maintain optimal indoor temperatures. All customs duties and GST are included in the listed price, with delivery facilitated by ExpressBox tracked shipping. Ensure your ventilation system operates efficiently and prevents drafts with this quality-built component.

Key Features

  • Quality Material — The backdraft damper is made of galvanized steel, the flap leaves are made of aluminu, and the axis and spring are made of stainless steel, which can withstand temperatures up to 50°C
  • Practical Features — The air duct choke prevents cold air or wind from entering the ventilation duct. The backflow flap opens and closes automatically at low air volumes. The valve is equipped with a smooth-running spring and a rubber gasket that create an airtight seal and grip between the damper and ducts
  • Easy Installation — The backflow prevention valve is installed by pushing it into the ventilation duct to make it as mobile as possible. When the valve flap is installed horizontally, the position of the spring should be horizontal so that the valve flap can be opened and closed optimally. This also applies to vertical installation. Same for vertical installation
  • Multiple Usages — The draft blocker is designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications. The back draft damper can be inserted into a flexible or non-flexible ventilation duct
  • Needs Attention — This airflow regulating backdraft shutter is installed on the TD lip to improve ventilation by preventing air circulation when the fan is not in use. Plastic pipes are of different sizes and cannot be used with plastic pipes

Why choose this product

Engineered for Efficient Airflow Control

This backdraft damper utilizes spring-loaded folding blades and an airtight seal to precisely control airflow, preventing unwanted drafts and maintaining your HVAC system's efficiency. Its robust construction from galvanized steel and stainless steel ensures durability and reliable operation in various conditions, including temperatures up to 50°C. The automatic low air volume functionality means it works seamlessly without constant adjustment, making it a practical choice for maintaining consistent indoor environments.

Ideal for Indian HVAC Needs

This damper is well-suited for Indian homes and businesses experiencing temperature fluctuations and potential drafts. It's designed for easy integration into AC units, dryer vents, exhaust fans, and heating systems. While it offers excellent performance for standard ventilation ducts, users with plastic pipes should verify compatibility. For those seeking to improve ventilation efficiency and prevent unwanted air ingress, this imported component provides a robust solution.

How to use

  • Select Correct Duct Size — Ensure the damper's 8-inch diameter matches the inner diameter of your ventilation duct or appliance outlet for a snug fit. Verify compatibility with non-plastic ducts.
  • Position and Insert Damper — Determine the optimal airflow direction. Push the damper firmly into the duct. For horizontal or vertical installation, ensure the spring mechanism is positioned correctly for automatic flap operation.
  • Confirm Airtight Seal — The rubber gasket and spring-loaded blades should create an airtight seal. Test by ensuring no significant air leakage occurs when the fan is off and the damper is closed.

Example scenarios

Typical situations where Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

Preventing cold air entry into a home in North India during winter.

How this product helps

Install this 8-inch backdraft damper in the exhaust vent of an AC or heating system. Its airtight seal and spring-loaded blades prevent cold drafts from entering, maintaining indoor warmth and reducing heating costs.

2
Scenario 2
Illustrative example
Where it helps

Reducing backflow from a dryer vent in a humid coastal region.

How this product helps

Use this damper in a dryer exhaust duct to prevent humid outside air from entering the home when the dryer is off. The galvanized steel construction offers durability against moisture, helping to maintain indoor air quality.

Specifications & installation

Installation & usage

ApplicationAC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents
Duct CompatibilityFlexible or non-flexible ventilation duct (not for plastic pipes)
Cost per useN/A (Durable product)

How we compare

FeatureMiuwauer 8 InchOthers
MaterialGalvanized steel body, aluminu flaps, stainless steel spring/axisVaries by brand; often plastic or thinner gauge metal
Sealing MechanismAirtight rubber gasket seal, spring-loaded folding bladesMay have less effective seals or simpler flap designs
Temperature ResistanceUp to 50°CTypically lower, especially for plastic components
InstallationEasy push-in into duct, horizontal/vertical spring alignmentMay require screws or specialized connectors
Price per Unit8 Inch Damper — ₹3,440 per unitVaries widely, often ₹500-1500 for comparable sizes

Product details

SKUjma3247
BrandMiuwauer
Size8 Inch
MaterialGalvanized Steel, Aluminu, Stainless Steel
Temperature ResistanceUp to 50°C
Installation TypePush-in into ventilation duct
Country of OriginNot stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

About Miuwauer

Miuwauer specializes in HVAC components, offering dampers and ventilation accessories designed for efficient airflow control.

Compliance & Legal

No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.

Customer Reviews

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FAQ, See What Others Asked

What diameter ducting do I need?
Measure the inner diameter of your existing vent or appliance outlet and match it to the listed duct size. This listing states the duct diameter and expanded length in the specifications so you can confirm fit before ordering.
Can this ducting be used for dryer or kitchen exhaust?
Check the stated application and temperature rating in the product details. Ducting sold for HVAC ventilation may differ from dryer- or kitchen-exhaust-rated runs, so select the variant that matches your intended airflow and heat conditions.
How to install the Miuwauer 8 Inch Backdraft Damper?
The backdraft damper is installed by pushing it into the ventilation duct. Ensure the spring position is horizontal for optimal flap opening and closing, whether installed horizontally or vertically. It's designed for a snug fit into compatible duct sizes.
Does this backdraft damper prevent all airflow?
This damper is designed to prevent cold air, wind, and backflow when the fan is not in use. It opens and closes automatically at low air volumes and creates an airtight seal, significantly reducing unwanted air circulation.
What materials is the backdraft damper made of?
The backdraft damper features a galvanized steel body, aluminu flap leaves, and stainless steel axis and spring, ensuring durability and resistance to corrosion and temperature up to 50°C.
Is this backdraft damper suitable for plastic pipes?
No, this backdraft damper is not designed for use with plastic pipes of different sizes. It is intended for insertion into flexible or non-flexible ventilation ducts made of compatible materials.
How to buy an original Miuwauer 8 Inch Backdraft Damper in India?
All Miuwauer products are sourced from authorized US retailers and authorized brand partners, ensuring authenticity. This backdraft damper is factory-sealed and imported per-order, with all customs duties and GST included in the listed price. It is shipped via ExpressBox tracked delivery.

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Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage

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Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage

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Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage

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Miuwauer 8 Inch Backdraft Damper for HVAC Ducts | Prevents Airflow Leakage

₹3,440

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₹15,170

You save ₹6,910 (31%) Extra

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3 items

₹15,170

You save ₹6,910 (31%) Extra

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Spec
Price
₹3,440
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Rating
4.38(8)
4.60(19K+)
4.70(729)
4.60(365)
4.50(340)
4.50(11K+)
4.70(28K+)
Brand NameMiuwauerAC InfinityIdeal IndustriesAC InfinityEagle AbrasivesRubbermaidACCUSHARP
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹3,440₹5,190

You Save ₹1,750

Estimated delivery: Doorstep delivery by 2 Nov - 4 Nov from USA
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Your Order Journey: From Purchase to Doorstep

You Order
Place your order
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Packed & shipped
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Fast transit
Consignment to India Warehouse
Customs cleared
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You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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₹10,320+ (3× the price)
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