BROAN-NuTone L400 Ventilator 320788-704 this ductstat provides the industrial-duty

this ductstat provides the industrial-duty performance required for consistent airflow management

including MEC120 and MEC230 models

While it fits many 5-ton and larger 50HJ series units

After installing the 77W89 conversion kit

Enhanced Durability: Equipped with self-aligning ball bearings that handle both horizontal and shaft-up/down installations without premature wear

BROAN-NuTone L400 Ventilator 320788-704 this ductstat provides the industrial-dutyThe BROAN NuTone L400 Ventilator is a high capacity centrifugal inline blower designed for continuous duty in commercial and light industrial applications. Delivering 434 CFM at 0. 1" SP, this 120v unit features a dynamically balanced centrifugal blower wheel and a 20 gauge galvanized steel housing to minimize vibration and resist corrosion. The permanently lubricated motor is engineered for high static pressure environments, making it ideal for long