Product description

Ideal for supply, return, or exhaust systems, this Lambro 6-inch by 8-foot semi-rigid air duct is a UL 181 Class 0 certified component featuring a crimped end for streamlined connections. Its 100% aluminum construction is corrosion-resistant, non-combustible, and flame-retardant, capable of enduring extreme temperatures up to 600°F. The innovative T-LOCK design utilizes a spirally wound, dead-soft aluminum strip with a mechanically fastened triple-lock seam to ensure a leakproof and airtight seal. This corrugated, semi-rigid structure offers the flexibility to bend easily while maintaining its shape to prevent collapse, and as a certified Class 0 duct, it carries no length restrictions for installation under the UL certification mark.

Product Features:

• UL 181 Class 0 certified and marked
• Meets NFPA 90a and 90b
• 8-foot length compressed to 23-inch
• Flexible air ducts shall not be limited in length
• Maximum operating temperature of 600°F
• All aluminum design
• Made from 36 gauge aluminum
• T-LOCK Triple lock airtight seams
• Flame-resistant
• Non-combustible
• One crimped end