32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Curved Blade Steel line-height: 20px

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Easy Installation: Comes with mounting screws for a secure fit in minutes

+ Product Details Size – 12"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 18"w X 34"h is the size for the duct opening measurement only

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32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Curved Blade Steel line-height: 20px+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 36" Or 36" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 35. 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