22" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Round Duct Pipe + Product Details Outer dimensions:

+ Product Details Outer dimensions: 19

these grilles ensure easy

This Will Create A Cycle Of In And Out Air FLow

10"w X 2"h Is The Size For The Duct Opening Measurement Only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 36" or 36" x 12" duct opening (measured at the opening)

22" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Round Duct Pipe + Product Details Outer dimensions:+ 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