14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 16.5" X 22.5"] Color_R-8.0 Pink + Product Details Size -

+ Product Details Size - 36"w X 10"h is the size for the duct opening measurement only

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

+ Product Details Size - 14"w X 30"h is the size for the duct opening measurement only

this HVAC vent duct cover ensures durability and reliability

offering a shiny

14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 16.5" X 22.5"] Color_R-8.0 Pink + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 20" OR 20" X 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 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