24" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w16h16 This versatile guard features air

This versatile guard features air circulating ports on all four sides to allow proper airflow

Actual Front End Outer Dimensions Are 14" Width X 4" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

85" width X 19

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 24" or 24" x 10" duct opening (measured at the opening)

24" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w16h16 This versatile guard features air+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 20" OR 20" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 19. 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