32" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter RV Mobile Home Actual Filter Size – 33

Actual Filter Size – 33 3/4"w x 25 3/4" x 1"

+ Product Details Size – 36"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 30"w X 28"h is the size for the duct opening measurement only

+ Product Details Size – 10"w X 14"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 8" OR 8" x 28" duct opening (measured at the opening)

32" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter RV Mobile Home Actual Filter Size – 33+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 30" OR 30" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 29. 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