34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum 75" width X 35

75" width X 35

featuring a 8" round duct opening

+Why Hvac Premium HVAC Premium has been providing superior quality service for many years

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 36" OR 36" x 22" duct opening (measured at the opening)

+ Product Details Size - 10"w X 22"h is the size for the duct opening measurement only

34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum 75" width X 35+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 16" Or 16" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 15. 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