What is a submersible pump and how do I use it

[Irksome]

Hi, I may be acquiring another tank, a used 110ltr aquatlantis. It will have a new submersible easyflux600 pump but doesn’t come with a filter. I have only used power filters and air driven sponge filters. What sort of filters can a water pump drive? How is it used and Is there anything that would be better? Thanks