26" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 6in The powder-coated finish ensures a

The powder-coated finish ensures a sleek look while protecting the grille from wear and tear

Actual Filter Size – 15 3/4"w x 21 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 12" duct opening (measured at the opening)

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

75"H – fits a 16" X 10" duct opening

26" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 6in The powder-coated finish ensures a+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 34" OR 34" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 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