36" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14" Diameter our damper helps create a

our damper helps create a well-balanced indoor environment

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 12" duct openings

The powder-coat finish lends a smooth

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

actual front end outer dimensions are approximately 26 5/8" width X 38 5/8" height

36" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14" Diameter our damper helps create a+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 22" OR 22" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 21. 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