PVC Flexible Duct Hose, Flame Retardant HVAC Ducting with Adjustable Rope, D ...

As described, feels sturdy also

It comes as ordered, the size and width, great product use it with the exhaust fan daily

We bought this to make a rabbit hole behind the sofa for our pet rabbit. It worked great. He does like to chew it up, but it's his so that's alright. It was worth the money

Useful

Got this for temporary ventilation. Not disappointed - has a drawstring on one side to attach, has several D rings along length, somewhat sturdy material (kinda like a very thin and cheap tarp). Collapses to like 6in thick which is nice, glad I didn't buy the expensive bags other people were selling. When you get it has an awful chemical smell. I ran it outside for several hours with my fan, and the smell reduced. After a few days it became very slight. Also, my toddler loved going through the tunnel (with the fan disconnected, obviously). It's not child safe at all, they get trapped in it, and there might be some bits of wire or whatever that pop off - but seemed fun though.

Good quality!

This is a high quality air tight flexible duct with some pretty long range for its compact form factor. 33 feet compacts down to only a few inches thick. I have a lot of different blower fans, sometimes for bringing clean air in for positive pressure most often than not as an exhaust for dust or particles. Normally I use the standard clear HDPE style flex bag tubing. This has two major issues 1) It is slippery and pressure makes it want to pull off the fan when it is strapped to it. 2) It is horrible with corners. It wants to kink around any sort of bend cutting off the flow. I have worked around this using PVC or HVAC elbows slid over it, but it is a pain and takes some time to get right. More than a few corners and its just a massive hassle to get them all in the exact right places. Half the time when you start it up then it moves and kinks elsewhere. You also can't easily attach it to a ceiling or strap it somewhere as it collapses when not inflated and has no attachment points otherwise. This fixes all those things. Not only is it far less prone to be pushed around compared to the the HDPE style tubes but it also includes a great cinching cord on one end that makes it easy to clamp it down over most fan ends I would guess. The built in steel wire ensures it doesn't kink when it is going around a corner or collapse in on itself. It includes multiple metal anchor loops that could be used to hang it from a ceiling or similar. As with any sort of the spiral metal ducting you want to minimize turbulence for best performance. It is best to have it taught and if you don't need the entire length to bunch it at one end rather than over the entire thing. This is large ducting though so you may not care about loss. Some discrepancy in temperature range. One photo said it works to 120C and the description says 100C. Note as well it is not symmetrical, only one end has the easy cinching cord and setup. If for some reason you need to attach to both the other would be more difficult. For me I can't remember the last time that was the case. The only thing that might be more helpful would be a few more d-rings for help with routing or less drupe when hanging. Overall very affordable for high quality ducting.

I often find myself in a variety of contractor-esque contexts despite not being a professional contractor. I've recently been helping a friend of the family deal with a rather disgusting septic situation. We needed some temporary ventilation for a few days, and wow, this flex duct came in very handy. I've also used it while constructing my secondary shop building, to keep the inside air from becoming dangerous with dust build-up and such. I particularly like how heavy-duty it is. The material is very sturdy. You can actually see the reinforcement woven into the fabric. It's really hard to mess up. During the septic incident, we ended up dragging it over sharp rocks and rough concrete edges, and it didn't get a single puncture. When used for my in-construction shop ventilation, it fell off a ledge while we were trying to route it through an opening (just dropped it, basically, not the products fault). It dropped about six feet before snagging on three large (and sharp) screws protruding from a stud. I thought for sure it would be cut because the screws essentially scraped right down the side of it with its full weight. But nope, there was only one very minor scratch on the outer shell afterward, not even partially punctured. So... this thing is stout. You pretty much have to directly, intentionally abuse it to do any real damage. It is very usable as well. It folds nicely and has high-quality D-hooks on it for easy hanging when deployed. I appreciate the bright color because when we were working on the shop's upper floor, we had it hanging above a temporary staircase and if you were tall enough, you'd have to duck at a particular point to avoid it. Being very easy to spot, that was a easily avoided obstacle. Everyone's situation will be different, of course, but I generally can't think of any scenario calling for temporary ventilation where this duct would not work well. You could even use it for longer term ventilation if you really wanted to, like for cooling a garage for weekend projects during the extreme summer heat. As far as value goes, that's a little bit of a disappointment. I ordered the 12" (33ft) variant, and at time of this review, it's listed at $64. That's steep considering competitors right here on Amazon are selling the same thing for ~$45. It little looks like the same exact product with the same exact quality. That's just with a 10 second search, too. So yeah, the price is high, making this a bad value. For that reason, I'm knocking off a star from my rating. But just based on quality of the product, this is a 5-star for sure.

Excelente produto.