P50 Ultra no Pro

I just received the P50 Ultra, not the pro. Whenever I look for accessories everything is the P50 Pro Ultra. Are the parts interchangeable?  The dust bag, filters, mop heads, brushes, rollers, and the automatic cleaning solution module? 

For some reason the P50 Ultra doesn't come with the automatic cleaning solution module and is a separate purchase but I can't find where to purchase it. It's not under accessories on Mova website, or the Mova's Amazon web store.