26" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Round Damper Ring With a 5" diameter for

With a 5" diameter for the duct opening measurement

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Actual Filter Size – 29 3/4"w x 33 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening)

[Outer Dimensions: 14

26" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Round Damper Ring With a 5" diameter for+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 14" OR 14" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 75" x 13. 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