34" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 Cubic core eggcrate design has

Cubic core eggcrate design has the highest rate of airflow efficiency

actual front end outer dimensions are approximately 31

+ Product Details Size – 12"w X 10"h is the size for the duct opening measurement only

Installation Location – Wall or door mount - door thickness up to 32mm - anodised finish - smooth & beautiful

34" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 Cubic core eggcrate design has+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 10" Or 10" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 9. 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