I was looking at the Hozelock products in my LFS and noticed that
Hozelock have a combined Pump, Filter, UVC combination product - the
price isn't exorbitant (but I guess that is subjective). Now my question
would be on the UVC side......

My understanding of UV usage in the marine aquatic side is that it is
used for prevention of parasites etc. Does the same theory apply to
Ponds as well with this UVC unit? Or is it just a water clarifier?

TIA
Gill