30" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12in diameter + Product Details Size –

+ Product Details Size – 6" x 32" or 32" x 6" is the size for the duct opening measurement only

Assembeled Before Powder Coat Paint

ventilation

10"w X 3"h Is The Size For The Duct Opening Measurement Only

actual front end outer dimensions are approximately 12 5/8" width X 32 5/8" height -

30" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12in diameter + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 18" OR 18" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 20. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 17. 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