16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Floor Grille + Product Details Size –

+ Product Details Size – 14"w X 26"h is the size for the duct opening measurement only

The grille features counter-sunk screw holes that prevent paint from peeling during installation

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 6" OR 6" x 24" duct opening (measured at the opening)

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

actual front end outer dimensions are approximately 10 5/8" width X 18 5/8" height

16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Floor Grille + Product Details Size –+ 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