Features:
- High static pressure design 
  Static pressure can be up to 150Pa,especially suitable for places in need of long distance airflow.
- Easy maintenance 
  The system has maintenance port for easy maintenance.
- Convenient installation
  You can choose circular air duct or rectangular air duct according to actual needs.Or you can choose different ways of air return.
- Protection function
  Anti-freezing protection,fanmotor overload protection,temperature sensor malfunction protection.