30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way 75"H – fits a 18"

75"H – fits a 18" X 18" duct opening

+ Product Details Size – 8"w X 10"h is the size for the duct opening measurement only

Can be hooked up with our "Butterfly Dampers" for precise airflow control

Actual Filter Size – 11 3/4"w x 9 3/4" x 1"

Full Control – Full 190 degrees control of air direction vertically & horizontally

30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way 75"H – fits a 18"+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 22" OR 22" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 21. 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