![](https://www.tcf.com/wp-content/uploads/2018/05/THDF-Propeller-Roof-Ventilator-PRV.jpg)
THDF
Filtered Hooded Tubeaxial Roof Ventilator, Direct Drive
Application
The THDF Filtered Hooded Tubeaxial Roof Ventilator is designed to provide cost effective, general-purpose ventilation of commercial buildings and features a removable galvanized steel hood for cleaning purposes.
Sizes (impeller diameters)
- 21 to 48 inches (355 mm to 1,220 mm)
Performance
- Airflow to 36,400 CFM (61,800 m3/hour)
- Static pressure to 1.5 inches w.g. (370 Pa)
![](https://www.tcf.com/wp-content/uploads/2018/06/Certs-UL.png)