The Oase BioSmart 18000 Pond Filter Set is a complete flow through gravity filtration system for ponds up to 18000 litres. Including the Oase AquaMax Eco Classic 5500 pump and Oase Vitronic 18W UV clarifier, it delivers mechanical, biological and ultraviolet filtration in one balanced package. Ideal for medium garden ponds and lightly stocked koi ponds, it provides reliable water clarity with simple maintenance.
