Evolution Aqua Nexus 320 Titanium Pond Filter Systems

The new NexusTi 320 combines Evolution Aqua’s trusted Nexus filter with 2 x built-in Titanium-Enhanced 55w UV Clarifiers — delivering crystal-clear, healthy water with maximum efficiency and minimal setup. The UV units are built directly into the clean water outlet of the Nexus filter, enabling optimal UV penetration and enhanced photocatalytic performance. 

Max Pond Size: 34000 Litres / 7500 Gallons

Maximum Flow Rate 13000 Litres / 2859 Gallons Per Hour

Volume Of Water Held: 840 Litres / 185 Gallons

K1 Micro Media Supplied: 20 Litres (Easy Filter)

K+ Media Supplied: 100 Litres (Bio Chamber)

Maximum Total K+ Media Volume Available In Bio Chamber: 300 Litres

Dimensions 1320mm (w) x 1025mm (h) x 1430mm (d)

The NexusTi 320 features Evolution Aqua’s proven mechanical and biological filtration process — combining solid waste removal and efficient biological conversion for perfect water balance. Everything you need for exceptional water clarity, in one smart unit.

The new Nexus+ filters are also supplied “auto ready”, with factory fitted fixings already in place, making it even easier to upgrade to the Nexus Automatic Cleaning System. (sold Separately)

Smart Design - Maximum Performance

The clarifying chamber integrates Titanium-enhanced UV units to achieve optimal hydraulic performance balancing flow rate, contact time, and water clarity. This advanced design ensures superior UV transmission and faster elimination of green water compared to standard systems.

Clears Green Water Faster

Advanced UV technology removes algae up to 1.5× faster than standard systems, giving you cleaner, clearer pond water quickly while maintaining a healthy aquatic environment.

Significant Savings On Pipeworks & Fittings

Built-in UV units eliminate the need for separate plumbing and extra fittings, reducing installation costs, simplifying setup, and keeping your pond area neat and uncluttered.

Fully Serviceable

Quick and easy maintenance: replace bulbs or quartz sleeves effortlessly, with all parts readily available from your local EA dealers. The UV units are designed for easy access, making cleaning, maintenance, and replacement simple and efficient.

IMPORTANT

The Nexus320Ti 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.

The Nexus320Ti is supplied ready for Pump Fed installation. You MUST remove the outlet stand pipe if setting up on gravity fed installations and make other adjustments. Carefully read installation instructions.

Whats in the box - Nexus320Ti Parts List

• Inlet Plate
• Hosetail Inlet Assembly Pump-Fed Set-Up 
• 55W UVC Bulb & Ballast x 2
• Eazy Mechanical Filter (K1 Micro is supplied in place in the Eazy section of your Nexus220Ti)
• 2 x 50 litre bag of K+Media (To be placed in the outer chamber of the Nexus220Ti)
• NexusTi Cleaning Instructions (Red coloured instructions for cleaning Gravity Fed installations. •  Blue coloured instructions for cleaning Pump Fed installations)
• Cleaning Pipe (Used during cleaning procedure)
• Holiday Kit (Collar and insert to be used when by-pass pipe needs to be turned)

Air Pump Recommendations

The following Evolution Aqua air pumps are recommended for use with the Nexus220Ti. These recommendations are based on the amount of K+Media that is in the outer chamber

100 Litres Air pump 95
100 - 150 Litres Air pump 130
150 - 300 Litres Air Pump 150

Pump Recommendation

Varipump by Evolution Aqua is a controllable pond pump, suitable for large ponds. Output and energy consumption can be controlled at the push of a button allowing you to set the flow rate to your needs, whilst monitoring the wattage that the pump is running at. The motor is quiet and reliable, delivering consistent performance. 

Varipump is powerful enough to run the largest of ponds and filters, and in the most demanding of situations.
It can be used as a submersible pond pump or it can be installed out of the pond, drawing water from the pond and through your filtration system.

How the Nexus 320 Ti Works

The NexusTi filter is simple yet innovative. Water enters the NexusTi 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  K+Media Moving Bed. The water then passes through the grill into the Exit Chamber, where UV clarification takes place, before 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 is a stainless steel vessel containing a set volume of static K1 Micro Media (18 litres for Nexus220Ti) which is located within the inner chamber of the NexusTi. After water enters the NexusTi 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. The Eazy has been designed so that it can be easily lifted out of the NexusTi should it be needed. 

The outer chamber of the NexusTi contains the moving bed of K+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 K+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 K+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 K+Media. To ensure excellent biological filtration of a NexusTi maintain a pond pH of 7 or higher. Bacteria conversion rates are reduced in cooler temperatures. 

Compatible with the Nexus automatic cleaning systems

Continuing Evolution Aqua's long standing reputation for innovation, the Nexus Automatic System now enables Nexus owners to benefit from a fully automated cleaning cycle on their multi award winning Nexus filtration systems.

Physically turning ball valves and manually switching pumps on and off will now be a thing of the past thanks to the Nexus Automatic System.

All of the key processes that form the cleaning cycle are now controlled automatically with this easy to install kit

Additional Accessories 

Lid to cover the Nexus320Ti model. Supplied with bungee cord fastening kit.

Nexus Waste Pipe Kit - Pipe kit to connect to waste outlets on Nexus. Please note: this will come supplied as separate components which you will need to glue together. This will allow you the flexibility to have it how you choose.

Unfortunately we currently do not ship this product to Scottish Highlands and islands, Isle of Man, Channel Islands, Isle of Scilly and Northern Ireland.