18" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" /* more readable bullets */

/* more readable bullets */ } /* LINK STYLING (PDF) */ #hvac-product-accordion a { color: #1a73e8

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 26" or 26" x 8" duct opening (measured at the opening)

6" width X 5

+ Product Details Size – 10" round duct opening-

actual front end outer dimensions are approximately 14 5/8" width X 26 5/8" height

18" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" /* more readable bullets */+ Product Details Perfect Fit & Easy Sizing Designed for a 18" x 14" OR 14" X 18" duct opening (measured at the opening), with actual outer dimensions of 20. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 17. 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