34" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 + Product Details Size –

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

875" width X 21

Cubic core eggcrate design has the highest rate of airflow efficiency

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

Check Out This Asin For Matching T-Bar Drop-Ceiling Grille: B007CNEJZK

34" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 + Product Details Size –+ 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