Easy Guide: Dosing Your System with Fernox Express & New TF1 Sigma Mini
@Fernoxvideo Express takes less then 30 seconds to dose the system without the need to drain down the system, saving time on-site.
Watch how quick and easy it is to dose your system using the Fernox Express Rage and the NEW TF1 Sigma Mini Filter
https://fernox.com/tf1-sigma-mini/