Online Catalogue  

Left tabNexus Eazy 220+Right tab

Nexus Eazy 220+

Online Catalogue | Evolution Aqua Products |  Nexus Eazy 220+

Nexus 220 Installation Manual

Click icon alongside to download
Nexus Eazy 220+

Nexus Eazy 220+
Ref: NEXEAZY220+

Introducing the next generation of Nexus Filtration Systems from Evolution Aqua.

The Nexus 220+ 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 220+ 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 220 Dimensions "Left Click More Button"

Price: 1,095.00 (Including VAT at 20%)

  • Gravity Feed   
  • Pump Feed   

Nexus Eazy 220 Specification
Maximum Flow Rate10,000 litres/hr 2200 UKgallons/hr
Maximum Pond Size18,000 litres 4000 UKgallons
K1 Media Supplied50 litres in Outer Chamber (Biological)
K1 Micro Supplied18 litres in Inner Chamber (Eazy Mechanical)
Recommended Air Pump**Airtech 75 or Larger**
Total Volume of Water in Filter510 litres 112UKgallons
Volume of Water in Outer Chamber405litres 89 UKgallons
Volume of Water in Inner Chamber105litres 23 UKgallons
** See Air Pump Recommendations

SoftFuse Nice Tables Preview
**Air Pump Recommendations
Total K1 Media in Outer ChamberRecommended Airtech Air Pump
50 litres as supplied - 75litresAirtech 75
75 - 100 litresAirtech 95
100 - 150 litresAirtech 130

Key Features and Benifits

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.

How the Nexus Works

How The Nexus Works

The Nexus filter is simple yet innovative. Water enters the Nexus via the inlet into the inner chamber which works as a basic vortex allowing larger solids to settle out. The water then passes through the Eazy where the finer particles are removed at the mechanical stage of filtration. From the Eazy the water passes into the outer chamber where the biological stage of filtration takes place using the K1 Media Moving Bed.

The water then passes through the grill into the Exit Chamber, where it is returned to the pond through the outlet. The Eazy is cleaned by diverting the air from the Outer Chamber to the Eazy using the air valves. Waste is then discharged through the larger waste ball valve. The Eazy has been designed so that it can be easily lifted out of the Nexus should it be needed.

The Eazy 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

Biological Filtration

The outer chamber of the Nexus contains the moving bed of K1 Media. This is where the final stage of biological treatment occurs. Biological breakdown occurs through different strains of bacteria living on the protected surface area on each piece of the K1 Media. These bacteria convert Ammonia and Nitrite into harmless Nitrate. The amount of Ammonia and Nitrite produced in the pond is dependant on feed rates and the type of food used. For higher feed rates additional K1 Media should be added into the outer chamber.

In optimum conditions 250g per day of average protein content food will be broken down by 50 litres of K1 Media. To ensure excellent biological filtration of a Nexus maintain a pond pH of 7 or higher. Bacteria conversion rates are reduced in cooler temperatures.

Lid for Nexus 220

Lid for Nexus 220
Ref: LID220
A strong and lightweight single piece cover that can be fitted to the Nexus 220 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 220 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%)