14" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w32h32 + Product Details Size –

+ Product Details Size – 12"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 26 5/8" height

+ Product Details Size - 26"w X 16"h is the size for the duct opening measurement only

Its polished pre-finish gloss varnish not only adds to its appeal but also ensures easy installation

14" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w32h32 + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 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 Made from