20" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel actual front end outer dimensions

actual front end outer dimensions are 37

+ Product Details Size – 24" x 34" or 34" x 24" is the size for the duct opening measurement only

Powder paint coating - White

75" Width X 17

20" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 16" OR 16" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 15. 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