12" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 14.5" X 14.5"] fixed bar actual front end outer dimensions

actual front end outer dimensions are approximately 33

please note that the total outer dimensions of the grille measure 6" in diameter

Actual Filter Size – 35 3/4"w x 23 3/4" x 1"

Actual Filter Size – 9 3/4"w x 9 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

12" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 14.5" X 14.5"] fixed bar actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 11. 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