• Flex Adapters connect the Flexible Elbow to the 3.5" Duct.
• PVC, UV stabilized & fire resistant. Tested to over 2,000 hours. Temperature range -4°F to 140°F
• Complements any residential or commercial building and paintable- Brush, spray, or roller to match or compliment custom colors, Duct & fittings are available in both LD92 (31/2"), LD122 (41/2")