22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades making it perfect for both

making it perfect for both residential and commercial installations

All of these grills have dampers

Actual Filter Size – 33 3/4"w x 13 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 6" OR 6" x 22" duct opening (measured at the opening)

actual front end outer dimensions are approximately 20 5/8" width X 38 5/8" height -

22" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades making it perfect for both+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 30" OR 30" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 29. 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