24" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w6h6 const content = item

const content = item

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 22" or 22" x 8" duct opening (measured at the opening)

Simplified Installation: Our Butterfly Damper ensures easy setup

+Why Hvac Premium HVAC Premium has been providing superior quality service for many years

+ Product Details Size – 22"w X 25"h is the size for the duct opening measurement only

24" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w6h6 const content = item+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 18" OR 18" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 20. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 17. 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