Description
actual front end outer dimensions are 17" Width X 17" Height
+ Product Details Size - 16"w X 25"h is the size for the duct opening measurement only
With its compact size and high-quality materials
+ Product Details Size – 16"w X 20"h is the size for the duct opening measurement only
High Quality – High-quality aluminum with counter-sunk screw holes (screws included) and no sharp edges
30" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Diameter actual front end outer dimensions+ 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