22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w14h14 + Product Details Size –

+ Product Details Size – 14"w X 8"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 26"h is the size for the duct opening measurement only

The grille comes with all necessary screws for a secure fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 14" or 14" x 6" duct opening (measured at the opening)

+ Product Details Size – 24"w X 14"h is the size for the duct opening measurement only

22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w14h14 + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 30" OR 30" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 29. 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