8" X 8" Outdoor Return Air Grille – For Outdoor Use - HVAC Vent Duct Cover Diffuser – [1.0mm Polished Aluminum] [Outer Dimensions: 9.75w X 9.75h] Outdoor Vent Covers Its sleek white finish complements

Its sleek white finish complements any decor

With its fully removable feature and safety hook

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and all locks open with just one key

+ Product Details Size – 20"w X 40"h is the size for the duct opening measurement only

8" X 8" Outdoor Return Air Grille – For Outdoor Use - HVAC Vent Duct Cover Diffuser – [1.0mm Polished Aluminum] [Outer Dimensions: 9.75w X 9.75h] Outdoor Vent Covers Its sleek white finish complements8" X 8"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 9. 75 Width X 9. 75 Height SEE IN DESCRIPTION HOW TO MEASURE A GRILLE PROPERLY Why HVAC Premium? You may think of grilles and registers as a generic component of the ventilation system in your house. But they are also the most visible representation of you air system. With HVAC Premium you get an extra measure of quality that will be visible to your