24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat + Product Details Size –

+ Product Details Size – 22"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 24"w X 34"h is the size for the duct opening measurement only

+ Product Details Size – 16" x 16" is the size for the duct opening measurement only

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

24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 30" OR 30" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 29. 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