30" x 16" or 16" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Outdoor Vent Covers Actual Filter Size – 9

Actual Filter Size – 9 3/4"w x 35 3/4" x 1"

Actual Filter Size – 13 3/4"w x 29 3/4" x 1"

Gymnasiums & Restaurants

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

Actual Filter Size – 9 3/4"w x 25 3/4" x 1"

30" x 16" or 16" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Outdoor Vent Covers Actual Filter Size – 9+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 16" OR 16" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 15. 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