AC Infinity 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans

AC Infinity 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans

Name: AC Infinity 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans
Brand: Ac Infinity
SKU: 372302199
Price: 64.73 EUR
Availability: InStock
Rating: 4.333333333333333 (6 reviews)

Product ID: 372302199

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Details

Brand
AC Infinity
Item dimensions L x W x H
12.7 x 9.7 x
Manufacturer
AC Infinity
Size
4 Inch
UPC
819137021303

🌀Spring-loaded aluminum blades for effortless airflow

🔒Rubber gaskets ensure airtight, no-backflow seal

🛠️Galvanized steel body for durability

Description

🔄 Keep your airflow fresh and your space draft-free — the smart damper for savvy homes!

PERFECT FIT - Precision-engineered for standard 4-inch ducts, ideal for range hoods, bathroom fans, and more.
BUILT TO LAST - Robust galvanized steel frame resists wear and tear for long-term reliability.
SEAL THE DEAL - Dual rubber gasket rings create an airtight grip, blocking drafts and debris effectively.
EFFORTLESS AIRFLOW - Spring-loaded aluminum blades open with minimal airflow, maximizing ventilation efficiency.
VERSATILE INSTALLATION - Mounts horizontally or vertically to fit any ducting setup seamlessly.

The AC Infinity 4" Backdraft Damper is a premium one-way airflow insert designed for 4-inch ducting in range hoods, bathroom fans, and HVAC systems. Featuring a galvanized steel body, spring-loaded aluminum blades, and dual rubber gaskets, it prevents backflow, drafts, and debris with an airtight seal. Its versatile horizontal or vertical mounting and powder-coated finish ensure durability and seamless integration into your ventilation setup.

Specifications

ASIN	B0842XSTV9
ASIN	B0842XSTV9
Best Sellers Rank	#19,643 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #64 in Heating & Cooling Ducting Products
Brand Name	AC Infinity
Customer Reviews	4.5 4.5 out of 5 stars (1,859)
Customer reviews	4.5 4.5 out of 5 stars (1,859)
Date First Available	25 March 2020
Item Dimensions	12.7 x 9.7 x 9.7 centimeters
Item model number	AC-BDD4-B
Manufacturer	AC Infinity
Manufacturer	AC Infinity
Model Number	AC-BDD4-B
Product Dimensions	12.7 x 9.68 x 9.68 cm; 318 g
Size	4 Inch
UPC	819137021303
Unit Count	1 Count

Reviews

J**M

Amazing product

Amazing

15.08.2025

C**O

Very solid unit. Walls are easily 2-3x thicker than the cheap ebay one I had before. Great design and quality.

7.12.2024

T**E

Das größte Außenmaß ist 206mm nicht 200mm. Die Klappen schlagen hart an und sind ungedämpft. Schöne Optik, aber mehr sicher nicht

21.12.2025

A**R

This company puts out "quality" items Something we dont see to often anymore. This item works great when exhaust fan turns on and closes nicely when fan is off. I like the rubber gasket Keeps cold air from coming back into house BigBox stores carry similar item BUT not as well made and more money Highly recommend

8.03.2025

C**S

Brilliant, sorted out the air coming into the property instantly! Felt warmer straight away, and looks very tidy and good quality. FOr the price of it as well, cant fault it at all.

7.01.2026

U**T

Bisher alles ok. Klappe funktioniert wie beschrieben. Einbau war einfach. Gutes Produkt. Sehr zu empfehlen.

3.03.2026

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 64.73

Duties & taxes incl.

GERMANYstore

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15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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