36" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 3-Way or 4-Way ensuring accurate thermostat operation

ensuring accurate thermostat operation

The integral multi-shutter damper with a convenient handle operator ensures that you can easily adjust the air volume

Filter Size - 17

+ Product Details Size – 12" x 18" or 18" x 12" is the size for the duct opening measurement only

High Standard Quality - Every part is hand inspected for quality before it is packaged

36" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 3-Way or 4-Way ensuring accurate thermostat operation+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 22" OR 22" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 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