34" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter with filter Transform your space's exterior with

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

Elevate your space with hassle-free functionality and experience superior ventilation today

actual front end outer dimensions are approximately 20 5/8" width X 20 5/8" height

actual front end outer dimensions are approximately 38 5/8" width X 20 5/8" height -

+ Product Details Size - 36"w X 28"h is the size for the duct opening measurement only

34" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter with filter Transform your space's exterior with+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 28" Or 28" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 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