16" x 28" or 28" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Adjustable Curved Blade actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 38 5/8" height -

Carefully packaged for protection during shipment

Actual Filter Size – 33 3/4"w x 17 3/4" x 1"

actual front end outer dimensions are approximately 8

16" x 28" or 28" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Adjustable Curved Blade actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 28" OR 28" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 27. 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