8" x 24" or 24" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 26.5"] Color_R-8.0 Pink Actual Filter Size – 9

Actual Filter Size – 9 3/4"w x 31 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 28 5/8" height

Effortless Integration: Crafted for easy connection to supply grilles of drop ceiling T-Bar vent covers

actual front end outer dimensions are approximately 10 5/8" width X 20 5/8" height

+ Product Spec Sheet Round Ceiling Diffuser Spec Sheet

8" x 24" or 24" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 10.5" X 26.5"] Color_R-8.0 Pink Actual Filter Size – 9+ Product Details Perfect Fit & Easy Sizing Designed for a 8" x 24" or 24" x 8" duct opening (measured at the opening), with actual outer dimensions of 10. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 7. 75" x 23. 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