Hon&Guan 4" x 8FT Aluminum Foil Insulated Flexible Duct, Dryer Vent Hose for HVAC Ventilation and Duct Fan Systems, 2 Clamps Include.

OK it's kind of comical how much I like this thing. I am stunned at how long it lasts on a single charge too. Super convenient to use and has a live meter that shows charging and consumption of battery in real time. Three speeds and all three are useful. It's great for getting water out of drip points after washing the car but I use it for tons of other things. I blow dust out from behind the fridge, oven, couches, vanities and leaves and dirt off the patio. I was surprised at how strong it is, putting it on my arm makes my skin flap like I'm skydiving!

worked for my AC unit its durable and I thought the offgas would be bad but its not. this tube is a good option for AC exhaust it can take heat and bending I love it.

xTool has a 3 inch hose, so if you buy another 3 inch hose, you would expect them to be at least the same size and work with the same couplers. But when you try to use this hose with an xTool coupler, it’s several millimeters smaller in diameter, so it definitely won’t form anything close to a seal.The hose itself is fine and feels pretty durable. It is a thick plastic, but not rigid like the xTool plastic where you can actually turn the hose in a particular direction and it will support itself. I did find that the difference in diameter between the xTool hose and this hose is sufficient enough that you can wind this hose inside of the xTool. So if you can find a coupler that works with this hose and an xTool port, this might be a good solution.UPDATE: I added two more pictures. Because it slides inside the other tube, I cut the xTool tubing to make two ends that go into the coupler and still have enough of the rigid xTool tube to provide some control and structure. I think this will work if you just use this tube to extend your existing tube in the middle. In the pictures you can see that I removed a middle section of the xTool tubing and replaced it with this. For additional structure, you could add more elbows of the xTool tube at strategic locations around this tubing.

I was sceptical when I first open this box up, but figured I'd test it to see how much heat loss it had at the full 16 feet length before I made my judgment.I hooked it up to my Chinese diesel heater, stretched it out and turned on the heater. It held and transferred the hot air with little heat loss.I'm remodeling my Class A's heater system and trying to plumb in the 8K diesel heater into the existing heat ducts of the coach. I will have 2 way feed when done so I can still use my OEM propane heater or flip a lever on the "Y" and use the diesel heater through the same ductwork.This 3" duct hose is more flexible than what comes with the Chinese heaters, so it's easier to work with, cut to fit and connect into the added ducting.I've run the heater setno max temp through this ducting for 3 days straight and there is zero issues with it. But be aware but will crush easier than the other Chinese ducting. Very flexible!Zero smell when geated too.

Wasn't sure this would do the trick when I bought it, but the price was right. When it arrived, I thought it might not fit or be safe with the heat I was using it for. It is very long and will get the heat I need where ever I want it. Being it is a wire covered with a PVC jacket, it will crush easy if you step on it, but continues to work well. I am not sure what will happen if I cut it down, but I know this will work for a 60mm and with an adapter, will work with 75mm outlet. Having a foil inside, it retains heat well.

Just received my hose and the jury is still out. They weigh heavier than the full aluminum hoses you get from a home improvement store. The outer coating though is much thinner than I was expecting. The product picture makes it look thicker, but in reality, it's paper thin. The inner foil is also paper thin. In saying that though, the outer layer was difficult to tear a little piece off the end as a test. It stretched, but never tore off. The hose also folds up as nice as it came. The hose clamps are a nice touch, but I would prefer wingnuts at the end instead of the worm screw. Also, as a warning, be careful when taking the plastic wrap off. My thumb went through it and got sliced on the wire sticking out. You may want to put a piece of tape or something on the wire so it doesn't happen while camping.Now the part I'm not a huge fan of and the 3 star review rating. Mine smell. Some reviewers say they don't, while others say they do. My plan is to use it with a diesel heater and figured the foil would be enough of a barrier to let any harmful smells through it. While I haven't used it with the diesel heater, I stretched them out in a bedroom and just have them airing out. I would say it filled the entire room with that plastic smell. Hopefully they'll air out enough to make the smell go away in a few days.So overall, they seem somewhat durable, they fold back up nice, and the hose clamps are a nice feature. The smell though is a bit off putting but we'll see if it clears up.

I bought this for my diesel heater and it works great, it’s lightly insulated and keeps the heat in the tube.I like the way it collapses from 16 feet to about 1 foot. It’s a little tight to get on but it’s better than to loose. Also you should run the heater for a few hours before ducting this into a tent, it does give off some strong fumes for awhile.