Model # 0563-0800-0001

Internet #203767551

Thermaflex KM 8 in. x 25 ft. HVAC Ducting- R8.0
0677431004251

Thermaflex

KM 8 in. x 25 ft. HVAC Ducting- R8.0

$5182 /box

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Product Overview

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 metalized vapor barrier which will not unravel.

  • Reduced total installation cost - fast, economical installation
  • Meets UL 181 and NFPA 90A-90B fire codes
  • Superior insulation and thermal performance
  • Easily shaped to fit over all inlets and quickly connects to fast fittings
  • Unique construction will not unravel when cut
  • Smooth air tight inner core of polyester is designed for low to medium pressure systems

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Customer Questions & Answers

what is 31 depth, how does it come when is 25 ft length

Asked by: Gary
31" is the depth of the box it comes in. 8" is the inside diameter of the duct and 14" is the outside of the duct with the insulation. the duct length is 300" or 25Ft. it is stretched out.
Answered by: Jimbo
Date published: 2017-06-09
  • y_2017, m_6, d_21, h_15CST
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Customer Reviews

KM 8 in. x 25 ft. HVAC Ducting- R8.0 is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Flex Duct First Timer I used to add supply and return to attic bedroom. Easy to use, cut and install. Outer jacket was tough enough that I didn't worry about assembly outside the knee wall and dragging through the access door. After reading all about the draw backs of flex duct I did use ridge wall connectors at ends and any turns. Final result air flow is excellent to attic.
Date published: 2014-09-30
  • y_2017, m_6, d_21, h_3
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