Looking at the page, it looks like the same technology that I am using at my house. I have a whole house tank. How they work is to change the chemical properties of the minerals so they do not stick to pipes and sinks. I have very hard water where I live and I did not want to install a water softener because of the waste water and sodium in the water. This unit is doing a great job. The water does not taste any different but there has been a huge difference in the scale in the sinks and on everything. For you naysayers, this really does work.
I purchased the water softener for the coach and this is much more expensive so I will stick with the water softener for the coach.