36" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat These grilles and registers give

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille

+ Product Details Size - 10"w X 28"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 16" Diameter

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 12" duct openings

36" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat These grilles and registers give+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 32" OR 32" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 31. 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