Evolution Aqua Nexus 220, Evolution Aqua's world leading filtration system has now got better. Incorporating the industry proven Kaldnes Moving Bed coupled with the exceptional New Eazy mechanical filter. Combined they provide outstanding water clarity and quality. It is extremely 'Eazy' and pleasurable to clean. Nexus 220 is a cleverly combined mechanical and biological filter creating an effective, high performance filtration system for all sizes of pond. It has and continues to revolutionise the way ponds are filtered. The Nexus combined with the New Eazy, means there really is no competition regarding price and what it will achieve Unbeatable water quality and clarity Zero maintenance within the Biological stage Low running costs Easy to install - 'plug and play' Small footprint Unparalleled value for money A 'pleasure' to clean Works pump or gravity fed No need for a high pressure and costly circulating pump