6" x 16" or 16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 18.5"] Aluminum actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 36 5/8" height

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+ Product Details Size – 12" x 30" or 30" x 12" is the size for the duct opening measurement only

+ Product Details Size – 12"w X 32"h is the size for the duct opening measurement only

Works for every air conditioning & refrigeration application including ductless mini-split

6" x 16" or 16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 18.5"] Aluminum actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 16" or 16" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 15. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum Made