24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 + Product Details Size –

+ Product Details Size – 20" x 28" or 28" x 20" is the size for the duct opening measurement only

360-Degree Airflow: Experience optimal air circulation like never before

actual front end outer dimensions are 26

Compatible with 24x24 openings and built from durable

no professional tools needed

24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 30" OR 30" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 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