12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Supply Grille text-align: center

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

Made of high quality aluminum that will never rust

actual front end outer dimensions are approximately 35

+ Product Details Size - 12"w X 36"h is the size for the duct opening measurement only

12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Supply Grille text-align: center+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 32" or 32" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 31. 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