34" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter with filter width: 22px

width: 22px

5" - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

Tough reinforced metallized polyester jacket - tear and puncture resistant

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 10" duct openings

actual front end outer dimensions are approximately 36 5/8" width X 24 5/8" height

34" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter with filter width: 22px+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 33. 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 Made from