32" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated icon { width: 22px

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75"H – fits a 14" X 8" duct opening

+ Product Details Size - 36"w X 10"h is the size for the duct opening measurement only

Filter Size - 29

32" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated icon { width: 22px+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 30" OR 30" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 29. 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