6" x 32" or 32" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 32.5"] w20h20 Universal Fit – Measures 3-7/8"

Universal Fit – Measures 3-7/8" wide x 3-1/2" high x 3" deep

8" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

actual front end outer dimensions are approximately 32 5/8" width X 8 5/8" height

actual front end outer dimensions are approximately 20 5/8" width X 26 5/8" height

6" x 32" or 32" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 32.5"] w20h20 Universal Fit – Measures 3-7/8"+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 32" or 32" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 31. 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