34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 36" or 36" x 6" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 24" OR 24" x 20" duct opening (measured at the opening)

Actual Filter Size – 27 3/4"w x 25 3/4" x 1"

Filter Size - 20

+ Product Details Size – 8" x 34" or 34" x 8" is the size for the duct opening measurement only

34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 6" Or 6" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 5. 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