34" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black 875" width X 11

875" width X 11

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

actual front end outer dimensions are approximately 32 5/8" width X 22 5/8" height

ensuring a sleek finish

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

34" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black 875" width X 11+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 26" Or 26" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 25. 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