24" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return grille with actual outer dimensions of

with actual outer dimensions of 26

+ Product Details Size – 16" x 34" or 34" x 16" is the size for the duct opening measurement only

High Quality – Rigid aluminum construction with counter-sunk screw holes (screws included) and no sharp edges

Crafted from robust 20-gauge steel

production and finish on all products

24" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return grille with actual outer dimensions of+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 36" OR 36" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 35. 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