22" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum + Product Spec Sheet Aluminum

+ Product Spec Sheet Aluminum Return Filter Grille Spec Sheet

actual front end outer dimensions are 3"

+ Product Details Size - 26"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 10"w X 28"h is the size for the duct opening measurement only

22" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum + Product Spec Sheet Aluminum+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 36" OR 36" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 35. 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