Lambro 1379WG-R 4-In. x 8-Ft. UL 2158A Premium Flexible Semi-Rigid Duct Louvered Vent Kit
• UL 2158A Certified;• Airtight design ;• Fire resistant;• Improved airflow ;• Highly flexible ;• Installer friendly ;• Patented;• Uninsulated;• Operating temperature range: -86deg F to 482deg F;• Max. velocity: 5,000 FPM;• Includes duct, vent, pipe, and clamps;
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