34" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Adjustable Return 75"H – fits a 24"

75"H – fits a 24" X 4" duct opening

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 14" OR 14" x 32" duct opening (measured at the opening)

10"w X 3"h Is The Size For The Duct Opening Measurement Only

actual front end outer dimensions are approximately 28 5/8" width X 12 5/8" height

Operating temperature from -40°f to +248°f [-40°c to +120°c]

34" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Adjustable Return 75"H – fits a 24"+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 32" Or 32" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 31. 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