VEVOR Insulated Flexible Duct 4" x 25 Ft R-6.0，Energy-Efficient 3-Layer HVAC Hose with 2 Clamps for HVAC & Exhaust Ductwork

Alright product - used a custom install - happens to fit the 5.5 " duct work for a zafro portal AC - was kind of tight to slide on tube, but in and came out alright - try getting r6.0 this way with other heat jackets on sale out there!!! while one has slide the hand inside the pull the duct right through - still works as intended. Actually r6.0 compared to other HVAC jackets on sale out there.

So whoever built my house decided to install a bathroom fan with no vent to the outside. Naturally, I had to correct this but that involved threading this duct through a pre-existing ceiling - 15 feet then a left hand turn then 15 more feet to the outside. This product made the journey. It's a sturdy duct. It got dragged over rebar, no problem. It handled being tied to a dryer brush, no problem. The outside never tore. The metal rings never got bent out of shape. It's so sturdy that it was kind of a problem, since it could NOT squish its way past pipes and wires. It also stops dead if it hits the pointy part of a screw. It doesn't rip, it just get caught then refuses to move. Because of this, I ended up having to open the ceiling in one spot to get it around a big pipe and two exposed screws. For anyone looking to do a similar project, I recommend using the smallest duct possible (I bought 4inch but I really wish I had bought 3inch). I'd also reconsider using an insulated duct, as the insulation adds two inches to the width of the duct and it doesn't squish down as much as you'd hope it would. And use the dryer-vent brush strategy for getting it through your ceiling. First, thread a long dryer-vent brush through the ceiling, then tie the brush end to the duct, then pull the other end of the brush - thus dragging the duct into the ceiling. But I'm glad I bought what I did. In the end, there is surprisingly strong airflow through the duct (I bought two and connected them to go the distance), and I credit the insulation with tamping down noise from the bathroom.

This flex duct works good. Easy to install. The outer aluminum wrap is thin but doesn't rip easily. It's easy to cut using a razer. The insulation is decent. The clamps are no good though. The quality of the clamps is fine, but the screw takes a lot of effort to move. I ended up using large plastic zip ties instead of the clamps. Overall I'm happy with this purchase. Packaging was very good.

Worked as suspected. Great length option when installing and connection to soffit vent. I love it !!!

I have bought several rolls of the major name brand of this, at my local lowes So I know what im working with. When I went to install this duct I found the inner duct to be easily torn, even with light pressure. I had to use kid gloves and even then I had to tape a couple tears. The insulation inside seemed to be on par with the big brand, the outer shell is a little weak as well, but thats much less of a problem.

The fit was tight for a 6" take-off but I'd rather it be tight than too loose. I loved that it came with hose clamps for each end... it made securing the duct work much easier. The insulation and casing was in great shape. Definitely worth the buy.

Purchased these ducts to replace the existing ducts that were torn and shredded by some cats that got into the attic of our rentals. These were very well made and long enough to only have to cut off a few feet off one of the ends to install them. Will buy again for the other units once that time comes.

Easy to work with

Flexibel verlegbar

J'en ai installé deux de 25 pieds pour passer de l'air chaud récupéré de mon foyer au bois du sous sol avec une turbine entre les deux et c'est parfait, l'isolation est correct ainsi que l'intérieur en aluminium, le revêtement extérieur est quand même assez solide vu le brassage que nous lui avons occasionné.

Ottimo di altissima qualità e il prezzo è veramente unico

Conforme à la description. Facile à utiliser

It came compressed in a box and with some large hose clamps. Quality is pretty good. I had no issues installing the product. Sturdy and insulates nicely. 10/10 may buy again.