24" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Bar actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

You may think of grilles and registers as a generic component of the ventilation system in your house

+ Product Details Size - 36"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 20"h is the size for the duct opening measurement only

Do not measure the overall size of the register itself

24" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Bar actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 26. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 23. 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 Made from