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Description
AC Infinity Backdraft Damper Ducting Insert 4-Inch Black GalvanizedDescription An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications. Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts. Mounts horizontally or vertically to prevent backflow and debris from entering ducting. Galvanized steel body with spring loaded aluminum damper blades that open with minimal airflow. Fit for 4 in. Duct Openings Product Length: 5. 03
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Works perfectly with MacBook
Bought these adapters after getting a wireless mouse for a MacBook and realizing the USB receiver couldn’t be connected directly because the Mac doesn’t have a regular USB port. These adapters solved the problem completely.
They work exactly as expected and were very easy to use. The quality feels good and the color matches the MacBook nicely, so they don’t look cheap or out of place. Small, simple, and stylish adapters that do their job well
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Anker adapters
These Anker adapters honestly saved me. The quality feels very premium and they work perfectly with no disconnecting or recognition issues. I used them to connect USB-C accessories and everything worked instantly and smoothly.
They’re compact, durable, and super convenient to carry around for my content creation setup. The metallic finish also feels much more reliable compared to cheaper adapters I’ve tried before.
Definitely recommend this brand if you want something dependable and high quality for your devices. ✨
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Very Well-Made and Works Great!
I have a Macbook Pro, and naturally, these computers don't come with USB ports to connect to. That's why I bought these adapters. I needed some high quality ones that I know will last me for a long time, and given that I own my Anker products, I figured these would be a great purchase.
And they are! These adapters are very well built. There's a bit of heft to them, and they feel very stable when plugged into my computer. There's no noise or distraction coming from them. You just plug it in and that's it. I have never once had any connectivity issues where the adapter, for whatever reason, stops working and I have to unplug it and then plug it back it. No, it works straight from the box and hasn't given me any issues.
These are great adapters because they're built very sturdy, will not cause any connectivity issues, and are nice if you want to use a mouse or connect a USB stick to your Macbook.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Simple Solution for Using USB-A Cables with USB-C Chargers
I used these for the first time last week when I needed to plug a USB-A cable into a newer USB-C charger.
They worked exactly as expected. The connection was solid, and the device powered on without any issues.
I’ve generally had good experiences with Anker products, and these adapters are consistent with that—simple and reliable for what they’re designed to do.
These are useful for bridging older USB-A cables with newer USB-C power sources, especially for basic charging needs.
Build quality feels solid for the size, and they’re small enough to keep with your cables without getting in the way.
Overall: a straightforward and reliable adapter for using USB-A cables with USB-C chargers.
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Reviewed in the United States on May 1, 2026
★★★★★ 4
Tight connections
works but difficult to use.
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Reviewed in the United States on May 27, 2026
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