6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 36.5"] Aluminum Bar Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 11 3/4" x 1"

+ Product Details Size – 16"w X 28"h is the size for the duct opening measurement only

Universal Fit – Measures 3-7/8" wide x 3-1/2" high x 3" deep

+ Product Description Introducing the 8" Radial Damper – Your Solution for Controlled Airflow

6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 36.5"] Aluminum Bar Actual Filter Size – 29+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 34" or 34" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 33. 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