22" x 26" or 26" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 8 5/8" height

+ Product Details Size – 12"w X 22"h is the size for the duct opening measurement only

Tough reinforced metallized polyester jacket - tear and puncture resistant

Actual Filter Size – 25 3/4"w x 25 3/4" x 1"

These are airflow control components made to connect to supply grilles of the drop ceiling

22" x 26" or 26" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 26" OR 26" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 25. 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