4 inch x 10 foot T-LOCK UL 181 Class 0 HVAC Air Duct (Semi-Rigid)
Product details
| Management number | 213615078 | Release Date | 2026/04/12 | List Price | $36.00 | Model Number | 213615078 | ||
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Ideal for HVAC systems, this Lambro semi-rigid 4-inch x 10-foot T-LOCK UL 181 Class 0 air duct offers flexibility and durability. Its corrugated design prevents collapse and allows for 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 with a triple lock seam, providing leakproof and airtight performance. With no length restrictions during installation, each section bears the UL certification mark. Always check local building codes before installation.
- Packaged in bulk
- UL 181 Class 0 certified and labeled
- Complies with NFPA 90a and 90b standards
- Compresses to 23 inches from 8 feet
- Unrestricted air duct length
- Operates up to 600F
- Constructed entirely of aluminum
- Made from 36-gauge aluminum
- T-LOCK triple-lock airtight seams
- Resistant to flames
- Non-flammable
- Requires foil tape or clamps for installation (not included)
| Color | Silver |
|---|---|
| Brand Name | Lambro |
| Manufacturer | Lambro |
| Material Type | Aluminum |
| Nominal Wall Thickness | 0.005 inches |
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