16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille and yet lightweight and easy

and yet lightweight and easy to handle

These are airflow control components made to connect to supply grilles of the drop ceiling

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

+ Product Details Size – 25"w X 20"h is the size for the duct opening measurement only

16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille and yet lightweight and easy+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 34" OR 34" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 33. 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