34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 20" OR 20" x 36" duct opening (measured at the opening)

actual front end outer dimensions are approximately 20 5/8" width X 10 5/8" height

actual front end outer dimensions are approximately 28 5/8" width X 32 5/8" height

With its compact size and high-quality materials

actual front end outer dimensions are approximately 26 5/8" width X 24 5/8" height

34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 22" Or 22" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 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