3 inch x 50 foot UL 181 Class 1 Non-Insulated HVAC Air Connector – 3 Layer – Item #6130UL

★★★★★ 4.8 41 reviews

$90.00
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Product details

Management number 213615208 Release Date 2026/04/12 List Price $36.00 Model Number 213615208
Category

The Lambro 3-inch by 50-foot UL 181 Class 1 approved, non-insulated air connector, suitable for HVAC systems at low to medium pressure and exhaust applications. It's made with layers of aluminum/polyester and metalized/polyester, bound with a fire-resistant adhesive that endures up to 250F. A galvanized wire helix reinforces the duct, preventing collapse. While it's safe to cut to size, avoid installing in lengths over 14 feet. Always verify local building codes before installation.

  • UL 181 Class 1 Certified Duct: Meets safety standards
  • Installation Length Limit: Maximum 14 feet
  • Operating Temperature: Up to 250F
  • Ideal Use: Bath fan exhaust ventilation
  • Construction: Aluminum/polyester and metalized/polyester layers
  • Additional Support: Galvanized helix wire
  • Ease of Installation: Flexible design
  • Prohibited Use: Not for clothes dryer installations
  • Accessories: Installation clamps not included
Color Silver
Brand Name Lambro
Manufacturer Lambro
Material Type Aluminum, Polyester

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4.8 out of 5
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41 ratings | 17 reviews
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