28" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Adjustable Return Enjoy protection

Enjoy protection

actual front end outer dimensions are approximately 32 5/8" width X 36 5/8" height

actual front end outer dimensions are approximately 26 5/8" width X 38 5/8" height -

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actual front end outer dimensions are approximately 34 5/8" width X 20 5/8" height

28" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Adjustable Return Enjoy protection+ Product Details Perfect Fit & Easy Sizing Designed for a 28" x 22" OR 22" x 28" duct opening (measured at the opening), with actual outer dimensions of 30. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 27. 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