32" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 12in display = isOpen

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+ Product Details Size – 10" x 22" or 22" x 10" is the size for the duct opening measurement only

+ Product Details Size - 14"w X 14"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 6" duct openings

+ Product Details Size – 32"w X 16"h is the size for the duct opening measurement only

32" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 12in display = isOpen+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 34" Or 34" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 33. 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