26" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Floor Grille + Product Details Size -

+ Product Details Size - 16"w X 6"h is the size for the duct opening measurement only

+ Product Description Introducing the 8" Radial Damper – Your Solution for Controlled Airflow

+ Product Details Size - 24"w X 6"h is the size for the duct opening measurement only

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Every part is hand inspected for quality before it is packaged

26" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Floor Grille + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 8" OR 8" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 75" x 7. 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