16" x 32" or 32" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Red Oak [Outer Dimensions: 20

[Outer Dimensions: 20

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

this easy-to-install grille fits seamlessly into any standard return filter opening

Actual Filter Size – 7 3/4"w x 35 3/4" x 1"

High Quality – Polished pre-finish gloss varnish ready to install - can also be sanded and re-finished according to application needs

16" x 32" or 32" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Red Oak [Outer Dimensions: 20+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 32" OR 32" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 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