AC Infinity Noise Reduction Clamp 6-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC

Needed a coupler in my dust collection system. This worked great. I feel like it might even reduce vibration a bit.

Some people complain about how it fits but they’re just ignorant. It’s designed to bridge the size difference so when you see it reducing on one end you know it’s working. Eliminates vibration noise and seals it up tight.

I have always taken a pretty lazy approach to my fan/filter setup and just set the fan on top of the filter letting gravity keep them together. It was finally time to get a clamp to make it secure and give me the option to hang the whole unit and choosing AC Infinity was a no brainer. Ive never had any issues with any of their stuff over the years so I expected this to be no different, and was right. Its very secure which is why I ordered it so Id be happy with that alone but it actually does cut down the noise a bit so thats nothing to complain about. My fan is a serious all metal beefy unit so for it to dampen it is pretty good. If I ran it with the plastic fan I have it would probably silence it completely.

Works great as a coupler and absorbs noise/vibration ok. Found exact same item for half the price. Exact except logo

Have this on one of my systems and not the other one and I can honestly tell a bit of a difference. I will be getting one for the other system once I’m able to be get to it in the tent. It eliminates the need need for a small portion of ducting and helps the streamline everything and makes for a nicer appearance. It’s very sturdy and very well made. Come with the necessary 2 clamps. You just need a screwdriver for the screws to tighten the clamps down.

This is a great product. Its just thin enough to be flexible, and thick enough to be very sturdy. You can always rely on AC INFINTY to make quality products.

Now that product has actually arrived I can properly review it. Connector hose is a tight fit but you want that. So as a result it is a little difficult getting it seated on both ends. Product does work as advertised. I liked it so well I have ordered 2 more so I can make all fan to device connections. I do recommend this product.

I used a couple of these to connect a high-CFM duct fan into 8 metal ducting. Years ago I had installed a pop-up vent behind our kitchen center-island cooktop, but I never got around to installing a fan to vent it outside. In the process of finishing our basement, I decided I should probably get that done before installing drywall and buttoning up the ceiling below the main-floor kitchen. I used standard 8 HAVC ducting to route the vent, and purchased a Vortex VTX800 duct fan here on Amazon, and then had to find a way to connect the fan into the ducting without transmitting vibration from the fan into the ducting. Standard 8 rubber couplers are not 8, as they are made for connecting to PVC and similar pipe with an outside diameter larger than 8. These AC Infinity couplers, however, are exactly 8 inside diameter, and while theyre a little shorter than I would have preferred, they worked perfectly. Theyre a little costly for the material you get, but I dont know that theres anything else this size out there, so this was a great find. Thank you Amazon!