30" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return filter The powder-coat finish lends a

The powder-coat finish lends a smooth

Rigid Built For External Use – The sturdy and rigid design features noise-free components that eliminate vibration and excess noise to the louvers

Actual Filter Size – 21 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 31 5/8" width X 24 5/8" height -

actual front end outer dimensions are 11

30" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return filter The powder-coat finish lends a+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 36" OR 36" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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