26" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18in diameter This versatile diffuser is available

This versatile diffuser is available in 1-way

heat pump systems

of up to 300m3/h

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

Rigid Built For External Use – The sturdy and rigid design features noise-free components that eliminate vibration and excess noise to the louvers

26" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 18in diameter This versatile diffuser is available+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 22" OR 22" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 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