20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 8" allowing you to take control

allowing you to take control of indoor air circulation without complications

Installation Location – Ceiling

+ Product Details Size - 22"w X 24"h is the size for the duct opening measurement only

it effectively prevents unauthorized access

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 26" OR 26" x 22" duct opening (measured at the opening)

20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 8" allowing you to take control+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 14" OR 14" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 13. 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