Multi-award winning
pond filtration systems

The Nexus 320 and Nexus 220 filtration systems deliver dramatically improved levels of clarity for ponds. Building on the success of the award winning Nexus range this new generation of filters cleverly combine mechanical and biological filtration into one advanced filter system, whilst being incredibly easy to clean and simple to install.


The Nexus 220 and 320 feature 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.

Nexus 220
Up to 4,800 Us Gals
Nexus 220
Up to 9,000 Us Gals
workflow Chart

How the Nexus Works

Water from the pond enters the nexus via the inlet into the inner chamber hich works as a vortex allowing larger solids to settle out. Water then passes through the grills in the stainless steel “Eazy” filter, where the finer particles are removed at the mechanical stage of filtration, thanks to the static bed of our award winning K1 Micro® filter media.

The mechanically clean water then passes to the outside chamber of the nexus where the K1 Media moving bed is located for biological treatment prior to being returned to the pond. At this stage, biological breakdown occurs through different strains of bacteria and filter feeders living on the protected surface area of each piece of the K1 Media. These bacteria convert Ammonia and Nitrite into less harmful Nitrate. Water then passes through the exit grill into the outlet, returning back to the pond.


Flow Rate
Volume of
water in nexus
Amount of
K1 Media supplied
in EAZY Filter
Amount of
K1 Media supplied
in Bio Chamber
Max. capacity
for K1 Media
nexus-220-logo18,000 Litres
4,000 UK Gallons
4,800 US Gallons
10,000 Litres/hr
2,200 UK Gallons/hr
2,640 US Gallons/hr
510 Litres
112 UK Gallons
135 US Gallons
18 Litres
of K1 Micro
inside tde EAZY
50 Litres
of K1 Media
in Bio Chamber
150 Litres
of K1 Media
in Bio Chamber
nexus-220-logo34,000 Litres
7,500 UK Gallons
9,000 US Gallons
13,000 Litres/hr
2,859 UK Gallons/hr
3,431 US Gallons/hr
840 Litres
185 UK Gallons
222 US Gallons
20 Litres
of K1 Micro
inside tde EAZY
100 Litres
of K1 Media
in Bio Chamber
300 Litres
of K1 Media
in Bio Chamber