K-FLEX DUCT® Liner Gray is specially designed as a fiber-free option to safely and effectively line air handling units. In addition to its excellent performance-related properties, a uniquely tough skin surface delivers superior protection and appearance.


• Fiber-free + closed cell structure = IAQ Control and Energy Conservation
• Available as S2S (skin-two-side) or with factory-applied PSA (pressure sensitive adhesive)
• Greenguard certified (Children & Schools classification) for low VOC content and microbial resistance
• Noise reduction (NRC of .50 at 1" thickness) - outperforms fiberglass at low Hz frequencies (<500 Hz)

  • Safe to install (non-dusting, non-wicking, non-abrasive, non-itching)
  • Easy to fabricate, install, clean and maintain
  • Contains an EPA-approved protective antimicrobial agent for added protection against mold

Lining of rectangular, round, oval and spiral ducts


100 Nomaco Drive Youngsville, NC 27596 | (800) 765-6475
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Member of L'Isolante group
Designed by Blu Solutions Inc. and McMillan Consulting Services