30" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter white Powder-Coat Finish – smooth

Powder-Coat Finish – smooth

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 10" or 10" x 12" duct opening (measured at the opening)

+ Product Details Size – 28"w X 16"h is the size for the duct opening measurement only

Filter Size - 25

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30" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter white Powder-Coat Finish – smooth+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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 Made from