20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size -

+ Product Details Size - 20"w X 22"h X 2"d (for duct opening measurement only)

Adjustable airflow control - by rotating the middle disk

+ Product Details Size - 16"w X 10"h is the size for the duct opening measurement only

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Our filter grille latch is easy to use on your fingers and requires no screwdriver to open

20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 14" OR 14" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 13. 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