Pond filters

Looking for a filter for a 10000 liter pond stocked with koi close to wakefield area

Anyone have a smaller external filter (150L minimum) they’d swap for some bogwood/accessories? Happy to collect. Thank you

Will swap for a momotaro bakki shower but doubt anyone will have one lol

What's postage please mate? Interested in a couple of sponge filters on payday. Cheapest I've seen that