F314/F318 (Manufactured Home) Class l Air Duct
Heavy duty 4 mil. black polyethylene jacket Double-ply black polyester core R-4.2 F314 formaldehyde free insulation
R-8.0 F318 formaldehyde free insulation UL Listed For indoor and sheltered outdoor applications 25' length Boxed
F314 Submittal Drawing (PDF file)
F318 Submittal Drawing (PDF file)
More (Class l) Polyethylene Jacket Flexible Air Ducts
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