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

Works great. Well packaged.

I bought this on a whim, and man was it worth it. Sound dampening for sure, but it LOOKS sleek and really ties everything together.

Good quality, helps cut down on vibrational noises in between the charcoal filter and the inline fan. Worth it, every bit of noise reduction is needed since my grow tent is inside my bedroom

I am impressed that AC Infinity takes such a holistic approach to their products. If you are working on building a grow tent system, you can do it all with AC Infinity products, including tents, fans, lights, ducting and other hardware. We recently set up another tent and wanted to attach the outgoing fan to an activated charcoal exhaust filter. The option at the time was to just tape the filter to the fan with duct tape. That was NOT a great solution. It kept falling apart while I was trying to hang it in the tent. This clamp changed all that - it was easy to connect and holds the two parts together solidly, as if it were one unit. It is priced competitively with other brand couplers and is well made - like every other AC Infinity product Ive ever used.

Quick 2 minutes install that eliminated the duct tape connector I had made. Airtight seal to connect ducting/filtration systems. Such a small yet important piece of your grow. Has a ridge inside to stop from sliding too far and included two clamps to tighten it down.

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

Works well does the job

Its a well thought out piece for the ac infinity inline unit. Although not necessary, it adds a clean look to the grow tent.

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!

This duct coupler works perfectly! It fits perfectly creating an air tight seal and noticeably reduces noise. I highly recommend it.