VIVOSUN 6 Inch 25 Feet Flex Air Aluminum Duct for Ventilation, 2 Clamps Included, Long Heavy-Duty Multi-Layer Dryer Hose Vent Kit, Duct Fan Systems

This 4-inch aluminum foil ducting is extremely well made and far sturdier than I expected. The aluminum layering feels thick and reinforced, not cheap or flimsy, and it holds its shape perfectly once installed. I really like the black outer layer—it looks clean, professional, and helps with light control compared to standard silver ducting. The hose is flexible enough to route easily, yet strong enough that it doesn’t collapse or kink. The 8-foot length was perfect for my setup, and the included clamps fit snug and secure with no air leaks. Overall, this is a high-quality, heavy-duty vent hose that feels reliable and built to last. Great for HVAC, dryer vents, or exhaust fan systems. I would absolutely buy this again and recommend it to anyone looking for durable, trustworthy ducting.

Excelente

Habe es zur Abluft meiner Brauchwasser Wärmepumpe im Keller gekauft, passt

This worked our perfect! I bought a 6" duct fan, 6" hole saw, a 6" wall mounted vent cap and this tubing was the missing piece. Seemed to be high quality, it was accordion style so I expanded it for what I needed and left the rest collapsed so I didn't have to cut it. No punctures or tears, and I appreciate that it came with the large clamp bands which can be hard to find and just add extra cost. Overall, really happy with this and the 4" one I purchased also!

My portable ac unit vent broke so I bought this one and it works create. See picture. Material seems to be of good quality. it has clams to clamp both ends. Looks great with black color. Very easy to install, just open up and pull everything comes out. Light weight and it woes as expected. Just tighten the clamps at both ends nicely.