Flexible Duct Insulation
Formaldehyde-free(TM) flexible duct insulation.

Designed for residential and commercial HVAC applications, Flex-Glas® EQ Formaldehyde-free™ flexible duct insulation provides excellent acoustical and thermal performance versus metal ducts. The product is manufactured using our HERMax high-performance rotary fiberization process and features a bio-based binder made primarily of rapidly renewable plant-based materials. Flex-Glas EQ also has a lightweight, highly resilient, fiberglass core specifically designed for use in the manufacture of finished insulated flexible ducts.

R-value: 6.0 (1-5/8")
Binder Type: Bio-based
Recycle Content: 14%
Greenguard: Gold

Available Documents