32" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Round Duct Pipe This grille is ideal for

This grille is ideal for both sidewall and ceiling installations

+ Product Details Size - 32"w X 26"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 18" Or 18" x 34" duct opening (measured at the opening)

High Quality – Solid rigid steel body for durability and reliability with dampers operable by switch for airflow directional control

32" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Round Duct Pipe This grille is ideal for+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 26" OR 26" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 25. 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