7 inch x 25 foot UL 181 Class 1 Non-Insulated HVAC Air Connector – 5 Layer – Item #477UL

★★★★★ 4.7 75 reviews

$90.00
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$90.00
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Free shipping Free 30-day returns

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Product details

Management number 213615331 Release Date 2026/04/12 List Price $36.00 Model Number 213615331
Category

The Lambro 7-inch by 25-foot UL 181 Class 1 certified, non-insulated air connector, suitable for HVAC systems operating at low to medium pressure, and exhaust applications. Manufactured with multiple layers of aluminum/polyester, bound by a fire-resistant adhesive enduring up to 250F. A galvanized wire helix reinforces the duct, preventing collapse. Install in lengths not exceeding 14 feet, but cuttable to size. Ensure compliance with 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: Multiple layers of aluminum/polyester
  • Additional Support: Galvanized helix wire
  • Ease of Installation: Flexible design
  • Prohibited Use: Clothes dryer installations
  • Clamps Not Included: Purchase separately
Color Silver
Brand Name Lambro
Manufacturer Lambro
Material Type Aluminum

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4.7 out of 5
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75 ratings | 31 reviews
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