34" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Grille + Product Details Size -

+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 14" Width X 8" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

Made from high-grade stamped steel

Q: Why BLACK

our Round Air Vent Supply Grille is the perfect addition

34" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Grille + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 12" Or 12" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 11. 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