This element is compatible with Quick Mill Heat Exchangers such as the original Vetrano HX and the Andreja, as well as the Rocket R58 (Steam Boiler) and Vesuvius (Steam Boiler)
To install this element, we recommend using a 1 7/16" socket and an impact wrench. Whenever changing the element, it's a good idea to change the gasket at the same time, which you can find here.