12" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 75" width X 15

75" width X 15

+ Product Details Size - 22"w X 8"h is the size for the duct opening measurement only

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including Ductless Mini-Split

12" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 75" width X 15+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 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