10" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 12.5" x 12.5"] Ceiling + Product Details Size -

+ Product Details Size - 32"w X 34"h is the size for the duct opening measurement only

Suitable for all AC applications

with actual outer dimensions of 14

+ Product Details Size – 24"w X 10"h is the size for the duct opening measurement only

If your hole is 14" wide by 20" tall

10" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 12.5" x 12.5"] Ceiling + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 10" x 10" duct opening (measured at the opening), with actual outer dimensions of 12. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 9. 75" x 9. 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 from