30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w6h6 + Product Details Size -

+ Product Details Size - 24"w X 18"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

actual front end outer dimensions are approximately 30 5/8" width X 18 5/8" height

Carefully Shrink Wrapped With Cardboard Backing To Prevent Damage In Shipment

75"H – fits a 14" X 6" duct opening

30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w6h6 + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 22" OR 22" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 21. 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