30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18" Diameter const icon = item

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+ Product Details Size – 6" x 12" or 12" x 6" is the size for the duct opening measurement only

+ Product Details Size - 26"w X 24"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 34" OR 34" X 14" duct opening (measured at the opening)

30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18" Diameter const icon = item+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 22" OR 22" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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