8" Inch Collar Duct Connector with Shutter for Flexible Aluminum Hose, Adjustable Flap, HVAC Ventilation Fitting, Easy Installation Adjustable Return With its practical roll-formed lock

With its practical roll-formed lock construction on all four sides

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 6

+ Product Details Size – 24" x 26" or 26" x 24" is the size for the duct opening measurement only

+ Product Details Size & Compatibility – The size of galvanized sheet metal straight floor boot is 12" X 6" X 4"

8" Inch Collar Duct Connector with Shutter for Flexible Aluminum Hose, Adjustable Flap, HVAC Ventilation Fitting, Easy Installation Adjustable Return With its practical roll-formed lockAccordion Menu + Product Details Size Diameter Range: Available in a diameter range of 4" to 10", the Exiva Duct Collar can be used with a variety of duct sizes. Material Constructed from durable polypropylene, the Exiva Duct Collar is designed to withstand a wide range of temperatures and demanding conditions in HVAC systems. Design The collar features a smart, user friendly design that includes a flexible air duct connection, ensuring a tight fit