26" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades } /* ICON */ #hvac-product-accordion

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+ Product Details Size - 34"w X 22"h is the size for the duct opening measurement only

Actual Filter Size – 25 3/4"w x 27 3/4" x 1"

Actual Filter Size – 35 3/4"w x 21 3/4" x 1"

26" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades } /* ICON */ #hvac-product-accordion+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 36" OR 36" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 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