8" Inch Collar Duct Connector with Shutter for Flexible Aluminum Hose, Adjustable Flap, HVAC Ventilation Fitting, Easy Installation Adjustable Return + Product Details Size -

+ Product Details Size - 28"W X 6"H is (for duct opening measurement only)

25" Width X 7

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 24" OR 24" x 20" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 24" OR 24" x 26" duct opening (measured at the opening)

8" Inch Collar Duct Connector with Shutter for Flexible Aluminum Hose, Adjustable Flap, HVAC Ventilation Fitting, Easy Installation Adjustable Return + Product Details Size -Accordion 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