22" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Round Duct Pipe Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 8" duct openings

This Will Create A Cycle Of In And Out Air FLow

Actual Filter Size – 27 3/4"w x 31 3/4" x 1"

75"H – fits a 24" X 4" duct opening

22" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Round Duct Pipe Ideal for Walls & Ceilings:+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 8" OR 8" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 7. 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