Online Catalogue  

Left tabNexus Eazy 320+Right tab

Nexus Eazy 320+

Online Catalogue | Evolution Aqua Products |  Nexus Eazy 320+

Nexus 320+Introduction

Click icon alongside to download
Nexus Eazy 320 +

Nexus Eazy 320 +
Ref: NEXEAZY320+
Introducing the next generation of Nexus Filtration Systems from Evolution Aqua.

The Nexus 320 filtration system delivers 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.

The Nexus 320 feature a re-designed Eazy filter which 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 these filter media deliver crystal clear and healthy water.

To view the Nexus 320 Dimensions "Left Click More Button"

Price: 1,294.99 (Including VAT at 20%)

  • Gravity Feed   
  • Pump Feed   

Nexus Eazy 320+ Specification
Maximum Pond Size34,000 litres 7500 UKgallons
Recommended Flow Rate11,000 litres/hr 2420 UKgallons/hr
Maximum Flow Rate13000 litres/hr 2860 litres/hr
K1 Micro Supplied in Easy20 litres in Inner Chamber (Eazy Mechanical)
K+Media Supplied100 litres in Outer Chamber (Biological)
Maximum amount of K+ Media300 litres
Volume of Water in Outer Chamber635litres 140 UKgallons
Volume of Water in Inner Chamber205litres 45 UKgallons
** See Air Pump Recommendations

SoftFuse Nice Tables Preview
**Air Pump Recommendations
Total K1 Media in Outer ChamberRecommended Airtech Air Pump
100 litres as suppliedAirtech 95
100 - 150 litresAirtech 130
150 - 300 litresAirtech 150

Key Features and 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 all parts of the Eazy much more effectively. This feature combined with the use of K1 Micro makes for improved flow rates through the entire mechanical filter.

Dramatically Improved Clarity

The Nexus 320 and 220 filter systems use 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 systems. Simply operating a combination of air valves and waste valves ensures that the Eazy filter and main filter body can be easily cleaned to deliver consistent water quality.

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 320 / 220 series can be removed if needed. This added feature is ideal when undertaking further maintenance.

<strong><span style='color: #00ccff;'>How the Nexus Works</span></strong>

How The Nexus+ Works

The Nexus+ filter is an innovative biological and mechanical filter system in one. Water from the pond enters the Nexus+ via the inlet into the inner chamber which works as a vortex allowing larger solids to settle out. The water then passes through Eazy filter, where finer particles are removed at the mechanical stage of filtration, thanks to the static bed of K1 Micro filter media.

The mechanically clean water then passes to the outside chamber of the Nexus+ where the new K+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 vast protected surface area of each piece of the K+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.

The Easy Filter

The Eazy Filter

The Eazy is a stainless steel vessel containing a set volume of K1 Micro Media (20 litres in the Nexus 320 and 18 litres in the Nexus 220) which is located within the inner chamber of the Nexus. After water enters the Nexus it rotates around the Eazy in the inner chamber with a downward motion allowing the larger solids to settle to the bottom of the chamber before passing through the slots of the Eazy into the static K1 Micro. The water flows from all angles through the K1 Micro where improved mechanical filtration and settlement takes place and fine particles are caught within the K1 Micro. The water then flows through the slots in the centre column and into the outer chamber.

Gravity Fed Cleaning Instructions

Click icon alongside to download
Pump Fed Cleaning Instructions

Click icon alongside to download


Biological Filtration

New advanced filtration media

Plastic media, for use in biological pond filters - specifically in moving bed bio reactors, was pioneered by Evolution Aqua, some 20 years ago. In recent years, other plastic media have come onto the market, usually with the aim of trying to get more and more surface area. However, one drawback to using plastic media has always been the time it takes to establish a stable biofilm – essential for good filtration.

After many years of research, Evolution Aqua have now developed a new media that not only gives class leading surface area, but also overcomes the problem of long maturation times.

K+Media is designed and manufactured in the UK by Evolution Aqua. This advanced media, with its innovative design, and class leading surface area provides enhanced biological and mechanical filtration.

As Evolution Aqua extrude K+Media, Minerals and Enzymes are added to the raw material. The result of this process, unique to Evolution Aqua, is a filtration media that not only outperforms most of its competitors due to its large protected surface area, but also answers the problem of how to speed up the time taken to mature your filter.

Minerals added for faster filter maturation

During the extrusion process, Evolution Aqua add a range of minerals, along with magnesium, calcium, enzymes and salt to the raw material that is used to manufacture K+Media. The result means that K+Media will mature much faster than many other types of media.

- The addition of these minerals creates a rough surface on the media. This textured surface has a microscopic honeycomb of peaks and craters that allow waste particles to collect, and nitrifying bacteria to form.

- The minerals act as a food source for the bacteria, helping the bacteria to develop and multiply at a faster rate, further improving maturation times.

- Calcium alone has proven advantages for developing and maintaining effective bio-films.

- The enzymes that are added also help to make the media “sticky” so waste particles can adhere to media easier.

- Salt is added during the extrusion process, which is dissolved during the cooling process, leaving a rough surface on which bio-film can easily adhere.

Increased surface area

With a new shape and profile, K+Media has also been designed to have an increased and class leading surface area, meaning an overall surface area of 1,350m2 per m3. More importantly for biological filtration, the protected surface area of K+Media is 1,025m2 per m3. This allows a stable bio-film to form and remain intact when used in moving bed biological filtration, as in the new Nexus+.

To ensure excellent biological filtration of a Nexus maintain a pond pH of 7 or higher. Bacteria conversion rates are reduced in cooler temperatures.

Stable bio-film development

e shape of K+Media optimises the amount of “quiet zones” within the media where a stable bio-film can develop. Whilst K+Media keeps the integral profile of K1 Media at its core, there is an extra layer of cells and fins around the outside of each piece that enable microscopic organisms such as Rotifers and Vorticella to thrive. This is an additional benefit as competitor media do not have such “quiet zones” that would allow these higher lifeforms of filter feeders to develop. The bacteria and organisms that form within the bio-film ensure the media delivers optimum levels of biological filtration in the moving bed, which has been proven filtration technology for many years in the fishkeeping hobby.

Lid for Nexus 320

Lid for Nexus 320
Ref: LID320

A strong and lightweight single piece cover that can be fitted to the Nexus 320 filter . They will withstand outside weather conditions and are UV resistant. They will keep sunlight, leaves, stray animals and other debris from effecting the performance of the biomass

Well worth considering when buying the Nexus Eazy 320 filters.

Price: 129.95 (Including VAT at 20%)

Waste Pipe Kit for Nexus

Waste Pipe Kit for Nexus

The kit contains all the necessary parts to connect the 1½" DU Pressure Ball valve and the ¾ " DU Pressure Ball valve, supplied with the Nesus Eazy, to a single waste outlet.
The kit will allow you to drain down the inner Nexus Eazy Chamber via the 1½" DU Pressure Ball valve and if you ever need to, drain down the outer Biological Chamber via the ¾ " DU Pressure Ball valve.

Price: 21.95 (Including VAT at 20%)

Transparent Lid for Eazy

Transparent Lid for Eazy

Clear Nexus Eazy Lid.

This Clear Eazy lid fits the stainless Steel Nexus Eazy section of the Nexus 220 and Nexus 320, this prevents any K1 escaping when agitating the K1 during the cleaning process.

Now available as a spare part that also fits the Nexus 200, 300 and also the nexus 210 and 310 models. This Clear Eazy Lid can be removed and replaced by easing the lid over the pan headed bolts attached to the side at the top of the stainless steel Eazy section.

Price: 32.98 (Including VAT at 20%)

Nexus Inlet Side Plate

Nexus Inlet Side Plate

Supplied with the Nexus Eazy, The Inlet Side Plate is available as a spare part. The inlet plate is used to prevent water coming from the pond or reverse flowing back to the pond whist cleaning the Nexus Eazy 220 and Nexus Eazy 320.

We would strongly recommend that the Nexus Inlet should be Isolated from the Pond by a Slide Valve or better still a Double Union Ball Valve

Price: 17.95 (Including VAT at 20%)

  • Nexus 320   
  • Nexus 220   

Nexus Eazy Cleaning Pipe

Nexus Eazy Cleaning Pipe

Supplied with the Nexus Easy, the Cleaning Pipe is available as a spare part. The Cleaning Pipe is used to prevent trapped mechanical waste contaminating the Biological section of the Nexus when cleaning thethe Nexus Eazy section.

We would strongly recommend that the Nexus should be Isolated from the Pond by a Slide Valve or better still a Double Union Ball Valve

Price: 20.95 (Including VAT at 20%)

K1 Filter Media 25 litre

K1 Filter Media 25 litre
Ref: K1-25L

Price: 43.96 (Including VAT at 20%)

K1 Filter Media 50 litre

K1 Filter Media 50 litre
Ref: K1-50L

Price: 69.95 (Including VAT at 20%)

K1 Micro 5litres

K1 Micro 5litres
Ref: K1MIC5l

Price: 28.50 (Including VAT at 20%)

K1 Micro 25 Litres

K1 Micro 25 Litres
Ref: K1MIC25

Price: 54.95 (Including VAT at 20%)

K1 Micro 50 Litres

K1 Micro 50 Litres
Ref: K1MIC50

Price: 89.95 (Including VAT at 20%)