24" X 8" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White 18" Diameter accordion-title:hover { background-color: #f0f0f0

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actual front end outer dimensions are approximately 10 5/8" width X 18 5/8" height

+ Product Details Size - 34"w X 34"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 10 5/8" width X 36 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 12" OR 12" x 26" duct opening (measured at the opening)

24" X 8" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White 18" Diameter accordion-title:hover { background-color: #f0f0f0+ Product Details Size 24"w X 8"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 25. 75" Width X 9. 75" Height SEE BELOW IN DESCRIPTION How To Measure A Grille Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed. High Quality Easy unrestricted airflow for your HVAC system 7 8" margin turnback. Carefully Shrink Wrapped With cardboard backing to prevent damage in shipment