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Swivel lock backdraft damper (1st of it's kind - Patent Pending)
artic white powder coat
Application: Ceiling or wall installation
This is a Genuine Original Equipment Manufacturer (OEM) Carrier part# HR81LG020
2 - Center Supports
4"-Inch R6 Insulated HVAC Flexible Air Duct - 25' Feet Length bearings Swivel lock backdraft damper (1st4" Inch R6 Insulated Flexible HVAC Air Duct 25 Ft The 4" inch R6 insulated flexible air duct (25' ft length) is engineered to deliver reliable airflow while reducing energy loss in HVAC systems. Its R6 insulation helps maintain consistent air temperatures, improving overall system efficiency. With a full 25' foot continuous run, installers benefit from fewer connections, reduced leakage points, and faster installation times. The flexible inner core
