20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat + Product Details Size –

+ Product Details Size – 12"w X 30"h is the size for the duct opening measurement only

+ How To Measure A Grille Measure the size of the vent opening

scratch-resistant surface that gleams like it's just been waxed

+ Product Details Size – 28"w X 14"h is the size for the duct opening measurement only

75" width X 26

20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 14" OR 14" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 13. 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