5" x 25' Insulated Flexible Flex Duct Ducting Silver R4.2 Inch Heating & Cooling

Description

This is a New Box of insulated Silver/Foil Flex Ducting.
The ducting is 5" in diameter and 25' long (which can be cut into shorter sections).  The R Value is 4.2
.  Insulated flexible ductwork is easy to work with and prevents condensation problems when duct is run through unfinished spaces (attics, crawls, etc). The insulated jacket also provides sound-dampening benefits to reduce fan/blower noise. Thanks for looking and good luck!
Know what you are buying!
Insulated flex ducting is rated by R Values.  The higher the R value, the better insulated the ducting, which translates into better energy efficiency and lower heating/cooling cost!  An R Value of 4.2 is considered the acceptable minimum with R 6 is being a better alternative and R 8 as top of the line.  Check out our store for a complete selection of sizes and R values!
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Insulated:
Yes
Diameter:
4-20 inches ID
Pressure rating:
(WG)
Positive:
10 inches (4"-16" ID), 6 inches (18"-20" ID)
Negative:
1 inch (4"-12" ID), ½ inch (14"-20" ID)
Velocity:
5000 FPM
Temperature Range:
-20ºF-250ºF cont.
Underwriters Laboratories listed for the US and Canada.
•
Complies with NFPA Standards 90A and 90B.
•
Corrosion resistant steel wire helix.
•
Fully lined for efficient air delivery.
•
The outer vapor barrier is a jacket of fiberglass scrim reinforced metallized film laminate
.
*Meets UL 181 and NFPA 90A-90B Fire Codes
**GreenGuard Indoor Air Quality Certified
***GreenGuard Children and Schools Certified