20" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w32h32 Looks Like It Was Just

Looks Like It Was Just Waxed

The first number in a grille size represents the width

+ Product Spec Sheet Aluminum Return Filter Grille Spec Sheet

+ Product Details Size - 14"w X 18"h is the size for the duct opening measurement only

20" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w32h32 Looks Like It Was Just+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 19. 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 from