14" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Grilles + Product Details Size -

+ Product Details Size - 30"w X 30"h X 2"d (for duct opening measurement only)

+ Product Details Size - 26"w X 32"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 24 5/8" height

Actual Filter Size – 29 3/4"w x 27 3/4" x 1"

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 6" duct openings

14" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Grilles + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 8" or 8" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 7. 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