24" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Aluminum + Product Details Size –

+ Product Details Size – 34"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 15 3/4"w x 25 3/4" x 1"

this grille enhances air circulation

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 28" duct opening (measured at the opening)

Actual Filter Size – 33 3/4"w x 5 3/4" x 1"

24" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Aluminum + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 22" OR 22" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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