Evolution Aqua Nexus 320+ Complete Filter, Pump, UV, Airpump Set
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Complete Evolution Aqua Nexus 320+ filtration system including Varipump 20,000, EvoUV 110w UV clarifier, Airtech 95 aeration and genuine Nexus lid. Designed for koi ponds up to 34,000 litres, this professionally matched package delivers high capacity mechanical, biological and UV filtration while saving nearly £300 compared to purchasing components separately.
£2,400.00 (inc VAT)
Evolution Aqua Nexus 320+ Complete Filter System Set
Complete High Capacity Koi Pond Filtration Bundle with Pump, UV and Aeration
The Evolution Aqua Nexus 320+ Complete Filter Set provides a fully matched filtration solution for koi ponds up to 34,000 litres. Rather than selecting components individually, this system combines large scale mechanical filtration, high capacity biological processing, ultraviolet clarification and dedicated aeration into a balanced package designed to operate efficiently together.
The set includes the Nexus 320+ filter supplied with a genuine Evolution Aqua lid as standard. In addition, it incorporates a correctly sized circulation pump, high output UV clarifier and appropriately matched air pump. As a result, the entire system operates within optimal flow and biological parameters from installation.
Because each component is selected to complement the operating capacity of the Nexus 320+, the system delivers stable water clarity and consistent long term biological performance in larger koi ponds.
Save Nearl £300 Compared to Buying Separately
When purchased as a complete system, this package represents a saving of nearly £300 compared to buying each component individually at standard retail pricing.
Instead of sourcing the filter, lid, pump, UV clarifier and air pump separately, this bundle ensures:
- All components are correctly matched
- Installation is simplified
- Compatibility is guaranteed
- Overall cost is reduced
Therefore, the Nexus 320+ Complete Filter Set provides both technical and financial advantages for serious koi keepers operating larger systems.
What Is Included in the Complete Set
- Evolution Aqua Nexus 320+ Filter – A state-of-the-art biological and mechanical filtration system
- Evolution Aqua Nexus 320+ Lid – Protects the filter while maintaining a seamless pond aesthetic
- Evolution Aqua Varipump 20,000 – Powerful and adjustable energy-efficient pond pump
- Evolution Aqua EvoUV 110w – High-output UV clarifier to prevent green water and control harmful pathogens
- Evolution Aqua Airtech 95 Air Pump – Provides optimal aeration for enhanced biological filtration
Each component operates within the recommended 11,000 litres per hour flow range of the Nexus 320+.
Optional Automatic Cleaning Upgrade
This complete set includes the Nexus 320+ filter in its standard manual cleaning configuration.
For pond owners seeking fully automated Eazy chamber cleaning and reduced hands on maintenance, the Nexus Automatic Cleaning Kit can be added as a separate upgrade.
Two versions are available:
- Evolution Aqua Nexus Automatic Cleaning Kit – Gravity Fed
- Evolution Aqua Nexus Automatic Cleaning Kit – Pump Fed
It is important to select the correct version to match your installation type. The Nexus 320+ supplied in this bundle is auto ready, allowing straightforward installation of the appropriate automatic kit at any time without modifying the main filter body.
This allows future automation while keeping the initial system setup simple.
Advanced Mechanical and Biological Filtration
The Nexus 320+ is designed for higher volume and heavier stocked koi ponds. It combines vortex settlement, fine particle capture and expanded moving bed biological filtration within a single integrated unit.
Firstly, water enters the central vortex chamber where heavier solids settle out of suspension. This reduces load on the mechanical stage and improves overall efficiency.
Next, water passes through the Eazy section containing 20 litres of K1 Micro media. This stage captures fine suspended waste before biological processing begins.
After mechanical separation, water flows into the outer chamber containing 100 litres of K+ media as standard. Continuous aeration keeps the media in motion. Consequently, nitrifying bacteria receive high oxygen levels and efficiently convert ammonia and nitrite into nitrate.
The 320+ can accommodate up to 300 litres of K+ media if expanded biological capacity is required.
This larger dual stage design provides stable water parameters in demanding koi systems.
Correctly Matched High Flow Circulation Pump
The Evolution Aqua Varipump 20,000 provides adjustable flow control, allowing accurate matching to pipework configuration and head height.
Maintaining correct dwell time is essential at this scale. Therefore, adjustable output ensures mechanical capture and biological conversion operate efficiently without excessive turbulence or reduced contact time.
High Output UV Clarification
The Evolution Aqua EvoUV 110w provides strong ultraviolet output suitable for larger pond volumes.
When matched to the correct flow rate, this 110w unit effectively neutralises single celled algae and supports consistent water clarity during peak seasonal growth periods.
Dedicated Biological Aeration
The Evolution Aqua Airtech 95 Air Pump supplies consistent airflow to the moving bed chamber. Continuous aeration prevents stagnation and supports strong bacterial colonisation across the K+ media.
Because biological conversion relies heavily on oxygen availability, proper aeration directly influences ammonia and nitrite stability in higher stocked ponds.
Flexible Installation Options
This system can operate in either configuration:
- Pump Fed – Water is pumped from the pond into the Nexus before returning via gravity.
- Gravity Fed – Water flows naturally from bottom drains into the Nexus, and the pump returns filtered water to the pond.
Both configurations provide reliable high performance filtration when correctly installed.
Genuine Nexus Lid Included
This complete set includes a genuine Evolution Aqua Nexus lid as standard.
The lid improves insulation, protects internal components from debris and UV exposure, and provides a cleaner filter bay finish.
Key Benefits
- Complete high capacity matched filtration system
- Save over £200 compared to individual purchase
- Mechanical and moving bed biological filtration
- Adjustable Varipump 20,000 included
- EvoUV 110w clarifier included
- Airtech 95 aeration included
- Suitable for pump fed and gravity fed installations
- Genuine Evolution Aqua lid supplied
Technical Overview
- Maximum pond size: 34,000 litres
- Recommended flow rate: 11,000 litres per hour
- Maximum flow rate: 13,000 litres per hour
- K1 Micro in Eazy chamber: 20 litres
- K+ Media supplied: 100 litres
- Maximum K+ Media capacity: 300 litres
- Pump supplied: Varipump 20,000
- UV supplied: EvoUV 110w
- Air pump supplied: Airtech 95
- Filter lid supplied: Nexus 320 Lid
Technical details
- Product: Evolution Aqua Nexus 320+ Complete Filter, Pump, UV, Airpump Set
- Brand: Evolution Aqua
- SKU / product code: NEXUS320-SET
- Type: food equipment
- Check model size, flow rate, connection size and compatibility before ordering.
- Install with suitable supporting equipment and allow access for future servicing.
Helpful links and compatible products
Use these links to plan the rest of the system around this product. The right pump, pipework, UV, air supply, media or spares will make the installation easier to set up, maintain and service.
- View the full Evolution Aqua range
- Read the Evolution Aqua Nexus pond filter guide
- Browse Evolution Aqua Nexus filters
- Match with Evolution Aqua Varipumps
- Add Evolution Aqua evoUV clarification
- Choose an Evolution Aqua Airtech air pump
More useful ranges and guides
These related ranges and guides may help you compare options, choose the right accessories and plan the full pond system rather than viewing this product in isolation.
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