22" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" + Product Details Size -

+ Product Details Size - 28"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 18"h is the size for the duct opening measurement only

+ Product Description Introducing HVAC Premium's Aluminum Adjustable Return Grill – the key to enhanced air control and energy efficiency

Actual Filter Size – 31 3/4"w x 27 3/4" x 1"

+ Product Details Size – 32"w X 12"h is the size for the duct opening measurement only

22" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 32" OR 32" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 31. 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