Features & Benefits

The secret of this revolutionary product lies in the simplest features, such as cotton insulation. 

As a result the Superior Air Duct® Semi-Flex and Wrap:

• Environmentally friendly
• Superior acoustical properties
• Stops condensation; mold & bacteria resistant; vermin resistant;
• Flame resistant/fire retardant
• Will not crush
• Higher actual R-value
• Less than 1 degree temperature differential over 50 feet!!

Superior Air Duct® Semi-Flex and Wrap is made with 100% cotton insulation:

• The cotton insulation is a 2.2 lb per cubic foot density with a thermal resistance value of R8+.
• The cotton insulation is environmentally friendly
• Cotton insulation is non itch – non toxic material
• Does not require protective clothing

Stops condensation; mold & bacteria resistant; vermin resistant:

• The natural fiber is treated with an EPA registered, non-toxic, borate solution and than “flash-dried” in the manufacturing process to offer mold/mildew protection. Borates are a very effective natural biostat that actively inhibit mold, mildew, bacteria, and fungi growth.

Flame resistant/fire retardant:

• Borates also act as an excellent fire retardant. This is the first A/C duct that will not support flame and will not melt down in case of a fire.