36" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 8in This grille is ideal for

This grille is ideal for both sidewall and ceiling installations

+ Product Details Size – 8" x 22" or 22" x 8" is the size for the duct opening measurement only

Traditional HVAC systems were designed for cold air

+ Product Description When it's time to upgrade your HVAC Vents in your house

Actual Filter Size – 7 3/4"w x 19 3/4" x 1"

36" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 8in This grille is ideal for+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 6" OR 6" x 36" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 5. 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