Nylon Flexible Duct Hose

It's durable and like the black matte aesthetic look to it. Great for anyone who works in certain labs and is OCD like me wanting to look neat and clean all around. Glad they included the clamp rings too. Great deal.

[Size: 4in 16ft]
Heavy duty.

[Size: 4in 16ft]
I used this Hon&Guan 4" flexible duct hose as an extension on my diode laser exhaust, and it’s working perfectly. The reinforced nylon construction feels durable and tear‑resistant, and the flexibility makes routing easy in tight spaces.At 16 feet, it gives plenty of length to work with, and the wear‑resistant design means it should hold up well over time. It connected securely and has been handling airflow without issue.Overall, this duct hose is reliable, easy to install, and a great fit for exhaust setups like mine.

[Size: 4in 16ft]
This is an exceptionally durable, high-flexibility ventilation hose designed to handle continuous low-to-medium pressure air movement without tearing or puncturing. It is incredibly easy to work with, making it an ideal choice for custom grow tents, kitchen range exhausts, bathroom ventilation fans, and localized HVAC air routing. For the price point, getting a continuous 16-foot run of reinforced nylon ducting offers superb utility for home improvement projects and indoor agricultural setups.Technical and Airflow Highlights:* Reinforced Nylon Fabric Architecture: Constructed from premium, tear-resistant nylon rather than thin, brittle aluminum foil, this hose withstands continuous vibrations, light scuffs, and repeated positioning without splitting open.* Standard 4-Inch Universal Diameter: The 4-inch inner collar dimension fits perfectly over standard inline exhaust fans, carbon filters, and wall-mounted vent hoods, ensuring an airtight connection when clamped down.* Generous 16-Foot Extension Length: The collapsible spring-steel core compresses tightly for storage but extends smoothly out to a full 16 feet, allowing you to route air around corners and through tight attic or basement joists easily.* Smooth Internal Core Boundary: The internal wire helix maintains a clean, circular cross-section when bent, reducing air turbulence and maximizing the cubic feet per minute (CFM) output of your ventilation fans.Installation and Ventilation Routing Tips:1. Critical Application Exclusion: As specified by the manufacturer, this reinforced nylon hose is strictly not for dryer use. Dryer exhaust contains high-temperature air mixed with highly flammable lint, which requires specialized, fire-rated rigid or semi-rigid aluminum ducting. Keep this nylon hose dedicated to ambient air exhaust, bathrooms, kitchens, and grow rooms.2. Minimize High-Angle Bends: While the high-quality material stretches and curves easily to reach different areas, try to route the ducting in as straight a line as possible. Every sharp 90-degree turn increases static pressure resistance, which causes your exhaust fan to work harder and reduces overall air movement efficiency.3. Secure Clamp Sequencing: When sliding the ducting over your fan or filter flange, pull the nylon jacket back slightly to expose the inner wire spiral. Secure the connection using a metal worm-gear hose clamp or a heavy-duty zip tie directly over the wire helix to guarantee it cannot slip off under heavy airflow pressure.Final Verdict: Built from quality materials, exceptionally resilient against wear and tear, and priced very well for its length. It successfully transforms a complicated, multi-bend ventilation routing chore into a quick, reliable, and puncture-free installation. Highly recommended for indoor growers, DIY renovators, and HVAC technicians.---Disclaimer: I received this product through the Amazon Vine program in exchange for an honest review.

[Size: 4in 16ft]
I needed some 4-inch flexible duct for a bathroom exhaust fan installation, and found this. Since I can’t tell how much ducting I need until I start the install, I went wild and ordered the 16-foot option, assuming that I can use whatever is left over elsewhere (but NOT with my dryer!).This is made of nylon material and seems much more forgiving than the aluminum duct typically used with a clothes dryer. It claims to be more durable and vibration noise reducing. The nylon material feels quite sturdy.The package includes two worm drive clamps for securing the duct. While I find spring hose clamps a bit easier to use, the worm drive clamps are probably a more secure choice in an exhaust fan installation.Although the title description clearly warns “Not for Dryer Use”, the text in “About this item” confuses the issue by stating “Please follow local codes for US dryer installation”. They’re sending mixed signals here. You cannot use nylon vinyl duct for a clothes dryer, since they cannot withstand the high heat generated by dryers and could create a severe fire hazard.This is a quality product for a reasonable price. It is a solid product.

[Size: 4in 16ft]
This flex duct is perfect for use with bathroom vent fans. It is lightweight but durable. It doesn't tear easily like plastic and foil ducts. It is long enough to reach across a large bathroom, and it doesn't require any special handling. It comes with two clamps - one for the fan end of the duct, and another for the exhaust vent cap. It isn't intended to be used with clothes dryers even though it is the size of most dryer hoses, so it should be used only for things that have a relatively cool air discharge. I think heat would damage it. The hose (duct) is less expensive than the ones on the shelves of the retail stores in my area, so I think it is a good value. If the entire 16 feet isn't needed, it can be cut to whatever shorter length is needed. It was long enough to take care of the installations of two fans for me, but it only comes with one pair of clamps. It can be used with duct-length zip ties and tape, so the kind of clamps that are included in the kit aren't an absolute necessity unless there are specific codes requirements wherever it is being used.

[Size: 4in 16ft]
I used this 4-inch flexible nylon duct hose for replacing some duct work and it is an excellent, durable choice for general ventilation, but, a reminder that NOT FOR DRYER USE. Its reinforced nylon construction makes it exceptionally tear-resistant and sturdy enough to handle being pulled through rough areas like crawl spaces without easily puncturing. However, as noted, its heavy-duty stiffness means it is not ideal for incredibly tight spaces requiring sharp, crimped bends. For a 16-foot span, it offers great value and longevity for HVAC systems, kitchen or bathroom exhaust fans, and hydroponic grow tents.​The warning on the listing regarding avoiding dryer usage cannot be overstated, as using this nylon hose on a clothes dryer poses a massive fire and damage hazard. Unlike rigid or semi-rigid aluminum ducting, nylon and PVC materials can accumulate static electricity that attracts flammable lint, causing dangerous blockages over time. Furthermore, the intense heat exhausted by clothes dryers can degrade or melt the synthetic material, creating a major safety risk that violates standard residential building codes. For the specific HVAC or grow tent uses it was engineered for, this product is highly reliable, but it must be kept far away from the laundry room.