30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Round Duct Pipe Looks like it was just

Looks like it was just waxed

The total outer size of this grille is the listed size plus 1

+ Product Details Size – 16" x 18" or 18" x 16" is the size for the duct opening measurement only

+ Product Description Maximize your home’s airflow with this premium 2-way air supply grille

Airflow – Easy unrestricted airflow for your HVAC system

30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Round Duct Pipe Looks like it was just+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 31. 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