30" x 16" or 16" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Diameter This Will Create A Cycle

This Will Create A Cycle Of In And Out Air FLow

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 6" Or 6" x 34" duct opening (measured at the opening)

actual front end outer dimensions are approximately 16 5/8" width X 18 5/8" height

+ Product Details Size - 24"w X 4"h is the size for the duct opening measurement only

30" x 16" or 16" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Diameter This Will Create A Cycle+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 16" OR 16" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 15. 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