12" x 28" or 28" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10" Diameter Transform your space's exterior with

Transform your space's exterior with our reliable and stylish louvers today

+ Product Details Size – 26"w X 8"h is the size for the duct opening measurement only

Actual Filter Size – 13 3/4"w x 15 3/4" x 1"

UPC – 622417529068

12"w X 8"h Is The Size For The Duct Opening Measurement Only

12" x 28" or 28" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10" Diameter Transform your space's exterior with+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 28" or 28" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 27. 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