30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Aluminum actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 26 5/8" height

+ Product Details Size – 36"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 24" x 24" with 10" collar T-Bar drop ceiling perforated return grill - metal back casing

+ Product Details Size – 14"w X 16"h is the size for the duct opening measurement only

30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Aluminum actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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