Welcome to the New Keller Supply Website - Our new website is now live. Enjoy improved product search, enhanced navigation, and an upgraded online experience. We welcome your feedback as you explore the new site.
THERMAFLEX® Insulated Flexible Duct, 20 in Duct, Round Vent Duct, 25 ft Length, 20 in Diameter, 6 in WC Positive, 1/2 in WC Negative, Polyester Film Fabric, Silver, R-Value: R6, 5000 fpm Velocity Rating, -20 deg F to 120 deg F deg F, 0.05 perm Vapor Transmission
Why Create an Account?
Ability to track orders
More Options & Savings
Amazing Customer Service
$406.40 / ea
In Stock
Attributes
Additional Information
Features & Benefits
Documents
Marketing Information
Attributes
BrandTHERMAFLEX®
IndustryHVAC
Additional Information
cULus Listed|GREENGUARD Certified|UL Listed
Features & Benefits
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
Made with Owens Corning™ EcoTouch® formaldehyde-free insulation
Made with 99% natural materials and highest recycled content
Strong polyester film laminated and encapsulating a heavy, corrosion-resistant steel wire helix, forms the inner core and supports a thick blanket of fiberglass insulation. The outer vapor barrier is a new bi-directional reinforced metallized vapor barrier which will not unravel. The smooth air tight inner core of polyester is designed for low to medium pressure systems.