30" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-8.0 Pink 75"H – fits a 18"

75"H – fits a 18" X 6" duct opening

+ Product Details Size - 10"w X 16"h is the size for the duct opening measurement only

making it perfect for both residential and commercial installations

actual front end outer dimensions are approximately 28 5/8" width X 20 5/8" height

The operable dampers

30" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-8.0 Pink 75"H – fits a 18"+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 10" OR 10" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 9. 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