20" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size –

+ Product Details Size – 28"w X 34"h is the size for the duct opening measurement only

Some of the best features aren't readily apparent

and a control lever designed for seamless operation

How To Measure A Grille

+ Product Details Size – 22" x 32" or 32" x 22" is the size for the duct opening measurement only

20" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 32" OR 32" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 31. 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