16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Adjustable Return + Product Details Size –

+ Product Details Size – 36"w X 6"h is the size for the duct opening measurement only

875" width X 14" height

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You may think of grilles and registers as a generic component of the ventilation system in your house

16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Adjustable Return + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 22" OR 22" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 21. 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