24" x 32" or 32" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" + Product Details Size –

+ Product Details Size – 32"w X 28"h is the size for the duct opening measurement only

Actual Filter Size – 17 3/4"w x 15 3/4" x 1"

+ Product Details Size – 34"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 3"w X 10"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 34" OR 34" X 14" duct opening (measured at the opening)

24" x 32" or 32" x 24" 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 24" x 32" OR 32" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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