3 inch x 8 foot T-LOCK UL 181 Class 0 HVAC Air Duct (Semi-Rigid) – One Crimped End – Item #293FUL

Ideal for HVAC systems, this Lambro semi-rigid 3-inch x 8-foot T-LOCK UL 181 Class 0 air duct, with one crimped end, offers flexibility and durability. Its corrugated design prevents collapse and allows easy bending, while its 100% aluminum construction ensures corrosion resistance, non-combustibility, and flame retardance, withstanding temperatures up to 600F. The T-LOCK design features a lightweight, flexible air duct made from a dead soft aluminum strip, spirally wound and mechanically fastened to form a leakproof, airtight triple lock seam. With no length restrictions during installation, each section bears the UL certification mark. Always check local building codes before installation.

• Packaged in Bulk: Multiple units per package
• UL 181 Class 0 Compliant: Certified and marked for safety
• NFPA 90a and 90b Compliance: Meets fire safety standards
• Compressed Size: 8-foot length reduces to 23 inches
• Unrestricted Length: Flexible ducts can be extended as needed
• Operating Temperature: Maximum of 600F
• Aluminum Construction: Entirely made of aluminum
• Gauge Specified: Made from 36 gauge aluminum
• T-LOCK Seams: Triple lock airtight seams for leakproof performance
• Flame Retardant: Resistant to flames
• Non-Combustible: Will not burn
• Pre-Crimped End: One end is pre-crimped for easy installation