16" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w22h22 75"H – fits a 18"

75"H – fits a 18" X 18" duct opening

+ Product Description Introducing the 8" Radial Damper – Your Solution for Controlled Airflow

+ Product Details Size – 16"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 14"h is the size for the duct opening measurement only

Filter Size - 17

16" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w22h22 75"H – fits a 18"+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 14" OR 14" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 13. 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