• Suitable for constant volume and variable volume air systems. • Suitable for various airflow system designs (pressure independent/dependent) • Suitable for various control applications (pneumatic/analog/digital control) • Designed to function with cooling only, cooling with reheat, and heating only applications. • Attenuated casing constructed with high quality galvanized steel insulated with batted covered fiber-glass. Inlet flow measured with cross multipoint averaging sensor for pressure independent terminals. High performing low leakage blade damper. • All models are AHRI & UL certified listed.