4 inch x 25 foot UL 181 Class 1 Non-Insulated HVAC Air Connector – 5 Layer – Item #414UL-12
$90.00
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Product details
| Management number | 213615132 | Release Date | 2026/04/12 | List Price | $36.00 | Model Number | 213615132 | ||
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| Category | |||||||||
The Lambro 4-inch by 25-foot UL 181 Class 1 approved, non-insulated air connector, used in HVAC systems for supply, return, and exhaust applications. It's made from multiple layers of aluminum/polyester, bound with a fire-resistant adhesive, enduring up to 250F. A galvanized wire helix reinforces the duct, preventing collapse. While it's UL 181 Class 1 listed, avoid installing it in lengths over 14 feet, but it can be cut to size. Always verify local building codes before installation.
- Packaged in bulk
- UL 181 Class 1 certified and marked duct
- Avoid installing in lengths over 14 feet
- Maximum operating temp: 250F
- Ideal for bath fan exhaust ventilation
- Constructed with multiple layers of aluminum/polyester
- Galvanized helix wire for added support
- Flexible design for easier installation
- Not for clothes dryer use (use UL 2158A duct)
- Installation clamps not included
| Color | Silver |
|---|---|
| Brand Name | Lambro |
| Manufacturer | Lambro |
| Material Type | Aluminum, Polyester |
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