24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 Location – sidewall and ceiling

Location – sidewall and ceiling

with actual outer dimensions of 26

Actual Filter Size – 17 3/4"w x 11 3/4" x 1"

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+ Product Details Size - 28"w X 12"h is the size for the duct opening measurement only

24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 Location – sidewall and ceiling+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 30" OR 30" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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