12" x 36" or 36" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter White Easy Installation – Includes all

Easy Installation – Includes all necessary screws for quick and hassle-free setup

+ Product Details Size – 24" Wooden Corner Baseboard Grille

complete with a supplied key

actual front end outer dimensions are approximately 28 5/8" width X 18 5/8" height

or office environments

12" x 36" or 36" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter White Easy Installation – Includes all+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 36" or 36" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 35. 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