30" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Outdoor Vent Covers it ensures long-lasting durability

it ensures long-lasting durability

Filter Size - 33

+ Product Details Size – 32"w X 25"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 4"h is the size for the duct opening measurement only

Actual Filter Size – 31 3/4"w x 5 3/4" x 1"

30" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Outdoor Vent Covers it ensures long-lasting durability+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 14" OR 14" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 13. 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