Evolution Aqua Nexus 220 + Profesional Koi Pond Filter


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Evolution Aqua Nexus 220 +

The Evolution Aqua Nexus 220 + filtration system is one of if not the best complete koi pond filter available. It delivers dramatically improved levels of clarity for ponds. Nexus 220 best price guarantee, found it cheaper elsewhere we’ll match! 
Building on the success of the award winning Nexus range this new generation of filters cleverly combines mechanical and biological filtration into one advanced filter system, whilst being incredibly easy to clean and simple to install.
The Nexus 220 features a re-designed Eazy filter which now utilises the all new K1 Micro Filter Media, in a static bed, to deliver improved levels of mechanical filtration. The Nexus filter systems also use the acclaimed K1 Media in the moving bed to deliver outstanding levels of biological filtration. Together this combination of filter media work to deliver crystal clear and healthy water.
All Nexus filtration systems can be installed on pump-fed or gravity-fed setups depending on your pond configuration. The Nexus 220 is suitable for ponds up to 18,000 litres (4,000 gallons). There is a larger Nexus 320 + available as well.

To benefit from the moving bed it is recommended to run an air pump with this filter , it is also used for the backwash function. The best Nexus 220 air pump is the airtech 95. 

Evolution Aqua Nexus 220 + Profesional Koi Pond Filter Key Features & Benefits:

 Improved Mechanical Filtration – The new design of the Eazy enables the Nexus to capture solids more effectively than before. K1 Micro is used inside the re-designed Eazy helping to deliver improved capture of fine particles, delivering unrivalled mechanical filtration.
  • Improved Flow – The new Eazy features an improved pattern of slots in the stainless steel body which makes the filter more efficient. Water can pass through the Eazy through all sides and from below, much more effectively than before. This feature combined with the use of K1 Micro makes for improved flow rates through the entire mechanical filter stage.
  • Dramatically Improved Clarity – The Nexus 220 filter system uses two types of filter media to deliver optimum levels of clarity in your pond. K1 Micro is used in the Eazy to improve mechanical filtration while the tried and tested K1 Media is used in the moving bed outer chamber, delivering the biological filtration.
  • Easy To Clean And Maintain – A key feature of all Nexus filtration systems is the sheer ease of maintenance. This still remains the case with the new Nexus 220 system. The Eazy is simply cleaned by using a combination of the cleaning pipe, air valves and ball valves fitted to the Nexus, meaning you don’t need to get your hands dirty. The clear lid fitted to the Eazy also makes it easy to visual inspect the K1 Micro media.
  • Better Solids Handling – Inside the centre mechanical stage of the Nexus, there is a much larger area for solid waste to be captured and to settle. This area can then be cleaned even easier than before ensuring the filter does not clog up with unnecessary amounts of waste.
  • Removable Eazy – All Eazy filters used in the Nexus 220 series can be removed if needed with the K1 Micro in place. This added feature is ideal when undertaking further maintenance.

Installing the Nexus

The Nexus MUST be installed on a solid, level base, a minimum of 1.2 metres x 1 metre. Failure to do this will cause irreparable damage to the filter and will therefore invalidate your warranty.


By this we mean that your pump is going to be used to return the filtered water to the pond and therefore your filter will be supplied by gravity via a larger diameter pipe. In this situation the water level in the filter will be at the same level as the pond.

nexus gravity installation



By this we mean that if your pump is going to be used to supply the water to the filter, and the filtered water then returns back into your pond via gravity, i.e. down a waterfall, or through a large diameter pipe, this is referred to as PUMP FED (i.e. the water is fed to the filter using a pump).

Nexus pump fed

Evolution Aqua Nexus 220 Information

The nexus 220 + does not come with a lid. If you would like one they can be purchased here.

Your nexus 220 filter will be delivered on a pallet usually by a 48hr courier.

View the Evolution Aqua Nexus 220 Manual by clicking here.

Nexus 220 Automatic is now available!



Delivery Information

All in stock orders placed before 12pm will be shipped the same day unless otherwise stated. Your order will be shipped via the delivery method selected at checkout.

All deliveries (excluding pallets and livestock deliveries) over £50.00 will be sent via 1-2 day courier free of charge. Orders under £50.00 will have both a 2-3 day service available at £3.95 and a 1-2 day service at £5.95 offered.

Please note that all services rely on third-party couriers to deliver on time and in good order. We will alway enever to use the best service available. At the moment this is Royal Mail, UPS and DSL. We will of course do our best to ensure that your delivery arrives when stated at the time of purchase, however, we can not be held liable for delays caused by the delivery company.

Aquarium & Pond Services