32" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 12in making it a reliable choice

making it a reliable choice for improving indoor air quality

+ Product Details Size - 26"w X 14"h is the size for the duct opening measurement only

Filter Size - 29

+ Product Details Size – 32"w X 16"h is the size for the duct opening measurement only

3/8” - 4223 PSI

32" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 12in making it a reliable choice+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 34" Or 34" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 33. 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