Will—December 30, 2025✓ Verified purchase
Not sure on the noise reduction portion but its a solid clamp and works well connecting my exhaust fan and the charcoal filter. been sitting solid for a few months now and unless the fan is running at 80% or higher you don't hear anything in the room or while walking past it. It doesn't obstruct the airflow and I feel like its pretty durable and will outlast my filter. Read more
Sam11B—February 24, 2026✓ Verified purchase
Another good quality product from AC infinity. I used this to connect my inline fan to the filter and silencer and outlet. Read more
Jason B.—February 3, 2026✓ Verified purchase
A MUST have to connect filter and fan!! Never again will I use duct tape!!! Took forever to get the already sealed tape off my filter/fan. Clamp was easy to install & fits like a glove. And it definitely reduces noise! It's not going to silence the fan; But I can definitely tell a "significant" difference! Can turn the fan up higher before hearing it as much, and even then it's still quieter than before. Read more
Nathan—September 8, 2024✓ Verified purchase
I got this for a 4" exhaust fan in a small grow box and it works great. I have it in between the fan and a carbon filter. The rubber is very thick and does a great job of reducing noise from vibrations of the fan. The clamps that come with it are solid and keep a tight seal on the fan and filter. All of their products are fairly priced and this is no exception. Quality product at a great price makes this a must have. Nothing to dislike about this product whatsoever. Read more
StormRune—December 13, 2025✓ Verified purchase
Superior product, installs easily, holds well. I originally bought just two for installing the fan itself, but liked using them so much I bought three more to simplify other joins in the welding exhaust ducting I was constructing Read more
Henry W—November 4, 2025✓ Verified purchase
Definitely needed.If you want to secure your inline fan to the filter without using tape. Works well super functional, easy to install it's only two screws. I believe it is a bit pricey though. Read more
Leo Guggenbiller—March 1, 2026✓ Verified purchase
This is for solid ductwork. It worked okay for my flexible duct. Read more
Jacob—February 6, 2026✓ Verified purchase
Probably the best coupler I have ever used! Read more