34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10" Diameter + Product Details Size –

+ Product Details Size – 20"w X 28"h is the size for the duct opening measurement only

Designed with durable

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 12" OR 12" x 22" duct opening (measured at the opening)

actual front end outer dimensions are approximately 28 5/8" width X 36 5/8" height

Actual Filter Size – 24 3/4"w x 21 3/4" x 1"

34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 10" Diameter + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 22" Or 22" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 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