22" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w18h18 } li { margin-bottom: 15px

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 18" or 18" x 10" duct opening (measured at the opening)

Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control

ensuring it arrives at your home in perfect condition

+ Product Details Outer dimensions: 19

22" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w18h18 } li { margin-bottom: 15px+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 20" OR 20" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 19. 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