20" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 Design – Easy unrestricted airflow

Design – Easy unrestricted airflow for your HVAC system - 50° angled to provide maximum airflow

+ Product Details Size - The listed 8" diameter refers specifically to the size of the duct opening

Elevate your air system today and enjoy improved aesthetics and efficient airflow for a comfortable living environment

With a 8" diameter for the duct opening measurement

Filter Size - 20

20" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 Design – Easy unrestricted airflow+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 29. 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