16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 Insulation density is 30kgs/cbm =

Insulation density is 30kgs/cbm = 0

+ Product Details Size – 22"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 30"w X 6"h is the size for the duct opening measurement only

But they are also the most visible representation of you air system

+ Product Details Size – 20"w X 8"h is the size for the duct opening measurement only

16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 Insulation density is 30kgs/cbm =+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 6" OR 6" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 5. 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 Made