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

Disclosure: This was sent to me for free via the Vine program. I did not receive monetary compensation to write this review, just the product itself. Awhile back, I got an AC Infinity Air Filtration Pro CLOUDLINE 4 through the Vine program. When we set it up, almost everything about it was perfect. Except for one thing. When its time to connect the activated carbon filter to the air pump and the electronic controller, they provided you with...tape. Bear in mind, this is a $190.00 retail system and they included tape to attach things. Not even really duct tape, just standard tape. So when I discovered this, I begrudgingly put in for it. The grommet comes in a plastic bag. Its about 3-4 inches long with two pipe clamps on it that can be tightened by a Phillips head screw (Philips? I can never remember). To install, you remove the tape that previously anchored the carbon filter (poorly) to the air filtration unit. You then gently separate the carbon filter from the air filtration unit and slide this unit in-between. Then, you gently push the air filtration unit into the grommet and tighten the pipe clamp and repeat the same action on the other side for the carbon filter unit. The unit is made out of fairly rigid plastic aside from the flanges at the end so make sure everything is even as it doesnt have much bend to it. Then, revel in your HVAC prowess. Truth be told, this should have been in the box to start. Sure, its $13 but it should have been in the nearly $200 unit that I got before, not tape. So would I recommend getting it? Yeah, if you got the air filtration assembly previously and it had tape. But I would HIGHLY encourage AC Infinity to put this in the kits from the get-go. This is just nickel and dime-ing people at this point. I paid nearly $200 before, why should I pay an extra $13 for a part that should have been in there in the first place?

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

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 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.

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.

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.

If you have an 8 inline fan and filter that you want a practically airtight and quiet connection, then this AC Infinity Noise Reduction Clamp 8-Inch, Duct Coupler with Stainless Steel Clamps will do just that and look professional and neat in the process. Made from quality materials and simple to install, do not hesitate to pick up this great accessory for your growing needs!

Fit both fan and filter reduced noise and sealed it up nice

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.