A friend of mine has recently moved into a new house with a pond but the previous owner took the filter system with them. I've been doing a bit of research and have narrowed it down to 2 models. Not sure if the Filtoclear is worth the extra money?

Oase Biopress 10,000 filter and pump
https://www.thatpondguy.co.uk/product/oase-biopress-set-10000-pond-filter-system/

Oase Filtoclear 13,000 filter and pump
https://www.thatpondguy.co.uk/product/oase-filtoclear-13000-set-oc/