22" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter RV Mobile Home These are airflow control components

These are airflow control components made to connect to supply grilles of the drop ceiling

14"w X 4"h Is The Size For The Duct Opening Measurement Only

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22" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter RV Mobile Home These are airflow control components+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 32" OR 32" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 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