The “Tornado-Flex Insulated AD Large Diameter” duct is made from two single-ply PVC vinyl coated yellow polyester fabric plies protecting an insulation barrier with a black external wearstrip reinforced with a spring steel wire helix. This is an insulated ductwork for use in portable air conditioners and ventilation ducting applications. Since the flex duct’s wall is made from a PVC coated polyester fabric, the duct hose retains PVC’s excellent flexibility and flex-fatigue. This flex duct can be compressed and flexed continuously and will show excellent life expectancy when exposed to movement. The PVC coated fabric wall also adds excellent weathering and chemical resistance and enhances the work lifecycle expectation of the flex hose. PVC material resists ozone, UV rays, and moisture making this hose ideal for indoor or outdoor use.
The “Tornado-Flex Insulated AD Large Diameter” hose is available in the following sizes: 20-, 22-, 24-, 28-, 30-, 36- and 48-Inches inside diameter. This hose is made to order and can be purchased in any length up to 50 continuous feet (contingent on the hose diameter). This flexible duct hose is only designed to move air and should not be used for other applications. It is an excellent air duct for permanent and mobile air conditioning units. Since this flexible duct has a five to one compressibility rating, longer lengths can be compressed down by a ratio of 5 and moved for storage. The large diameter duct also has an exterior wearstrip which protects the hose from wear and tear when dragged and moved in on field installations. The “Tornado-Flex Insulated AD Large Diameter” has a standard yellow color (with black wearstrip) however custom colors such as Blue, White or military hues like olive drab and desert tan are also available.
This series of insulated flexible ductwork has an insulation wrap with an R-value of four. This is sufficient to slow down that heat flow from the interior of the hose to the outside. The insulation wrap is effective at reducing the rate of convection and will slow down the heat transfer that is present in air conditioning installations. This insulated flexible air duct has a temperature range of -20 Fahrenheit to +180 Fahrenheit. To make installation and removal of the duct hose easier, a variety of cuffed ends are available. Reduced end sizes, enlarged cuffs, funnel cuffs, longer cuffs and belted cuffed ends are some of the possibilities and are available upon request. This flexible duct hose is also made with flame retardant materials and this is to mitigate the risk of fire in the places where you least suspect it of occurring
Volume Pricing
| Pricing per Foot | 25 – 99 feet | 100 – 249 feet | 250 – 499 feet | 500+ feet | |
| 28” ID | $160.08 | $139.27 | $132.06 | $120.06 | |
| 30” ID | $172.78 | $150.32 | $142.55 | $129.59 | |
| 36″ ID | $228.06 | $198.41 | $188.15 | $171.04 | |
| 48″ ID | $283.44 | $246.59 | $233.84 | $212.58 |
See Our Flexible Ducting in Action
Tornado Flex Insulated AD
Tornado-Flex Insulated AD Large Diameter
Expert's Review
Our Expert’s Opinion
Robert, an experienced team member, has this to say
Pros
Large ID Sizes: 20, 24, 28, 30, 36, 40, 42, and 48-Inch ID
Made in the US duct
Abrasion Resistance: Wear-strip protects from external abrasion
Colors: Buy in a variety of colors including military hues
Cuffs: Available with a variety of end finishes
Insulation: Has an R-Value of 4
Cons
4 to 6 Week Lead time
Only a ventilaiton hose
Better Options: Neoprene coated hoses are better quality
WARNING: Cancer and Reproductive Harm - 
