Thanks for your question. There are a lot more differences,  not only 5 vs 1 micron. Difference is mainly in the technology of Disruptor, this is why it is able to remove more types of contaminants. Also, in Disruptor, all components that touch water are US/UK made, while Lite uses some Taiwan components.

But yes, both systems are transferable. Please remember though that there is a need to drill a hole in the sink or countertop. Some rented places are not ok with that, so you may need to install countertop first, without drillin, and then, when you move to your place, you can drill for undersink installation.