The electro thermal actuator can indicate the valve open and close by the red pole . It is flexible, convenient, 

reliable performance, durable and energy saving.

* The appearance design conforms to the aesthetic taste of most users.
* Excellent components, using original electric heating paraffin propulsion components, stable performance
* Quick installation, nut connection, exposed installation is simple and convenient

* High quality and long time warranty, users do not need to change it frequently.