Another stretch to call it a different filler. Like the Wiedlich, the filling system is not different. Perhaps it is just different marketing. But I like to show it anyway. It is a standard matchstick filler with a collar to cover the hole. But it comes with an easily detachable accommodation clip which is used to compress the pressure bar and sac.
![](https://vintagependoctor.com/wp-content/uploads/2020/03/clip-fill-2-1024x240.jpg)