30" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Anodized Aluminum no professional tools needed

no professional tools needed

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 8" or 8" x 12" duct opening (measured at the opening)

ensuring compatibility with most thermostat models

you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille

30" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Anodized Aluminum no professional tools needed+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 20" OR 20" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 19. 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