34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 actual front end outer dimensions

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

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

With its compact size and high-quality materials

Universal Fit – Dimensions of 6-3/8" wide x 3-1/2" high x 3" deep make it compatible with most standard thermostat models

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 34" or 34" x 8" duct opening (measured at the opening)

34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 actual front end outer dimensions+ 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