Product Details
Thermaflex M-KE HVAC ducts feature a vinyl coated spring steel wire coil construction, tailored for low to medium pressure heating and cooling environments. Designed for efficiency, these flex ducts come with a core that is bonded to the steel wire coil, providing support for fiberglass insulation. Duct insulation is offered in three different R-values: R-4.2, R-6.0, and R-8.0, allowing for various thickness options. The acoustically rated polyethylene inner liner effectively minimizes noise and facilitates easy expansion, while the spiral ducts are resistant to mold and mildew. These ducts operate within a temperature range of -20°F to 200°F, with intermittent use up to 250°F. The inner core is self-extinguishing, and the ducts are available in diameters from 4" to 20". Additionally, the product is Greenguard certified and comes with a 10-year limited warranty.








