Thermo™ Thermopan Return Air Panning, 16 x 47-1/2 in Size, 1/8 in H, Fiberglass, Aluminum, R5 R-Value

• Made from recycled products
• No shop fabrication, user friendly - no cut hand
• No oil canning or duct noise
• Air space provides positive R-value
• Stapling as directed results in plenum air seal tighter
• Enviro-friendly
• Moisture treated against dampness
• All popular joist size
• Pre-formed headers (regular joists and I-joists)
• Made in the USA and Canada
• Class 1 fire rating
• A high-quality, sheet metal alternative for constructing return air ducts between joists and stud cavities
• Consists of corrugated insulation faced with aluminum
• 15 smoke index
• 5 flame spread index