Garage pond filtration - we use a ProfiDrum RDF with a FlowFriend pump running the water to a shower. The system will filter 13.2k gal per hour. : r/Aquariums
ProfiDrum Filters - Genkikoi
Profidrum UK | Drum Filters | Koi Pond Filtration Equipment | ProfiDrum UK
Children of the Sun Koi - Products - Profidrum Combibio 30