Unger HydroPower Systems | DI, Nano and RO Filters

HydroPower Systems

Unger HydroPower systems for producing pure water

HydroPower systems transform mains water into water with a very low concentration of minerals for the professional cleaning of windows, façades and other surfaces.

Pure Water is delivered from the filtration system to the pole and brush. After the surface has been brushed and rinsed correctly, it can be left to dry without using a window squeegee.

This category includes HydroPower Ultra deionisation filters, the HydroPower Nano hybrid system and HydroPower RO reverse osmosis systems.

Which Pure Water system should you choose?

The choice mainly depends on:

  • The hardness and dissolved solids in the incoming water.
  • The amount of Pure Water you need to produce.
  • How frequently the system will be used.
  • The number of operators or poles working simultaneously.
  • The availability of electricity and water pressure.
  • The available space and the means used to transport the system.

HydroPower Ultra: DI resin filters

The HydroPower Ultra range produces pure water using ion exchange resin. Mains water passes through the resin, which retains dissolved minerals.

These filters do not require electricity or their own pump. They connect to a water supply with sufficient pressure and allow you to start producing pure water easily.

The range is available in three versions:

HydroPower Ultra S

The HydroPower Ultra S is the most compact model. It uses a 6-litre Ultra resin bag and includes a digital TDS meter to check the quality of the outlet water.

It is intended for occasional work, moderate consumption or users looking for a DI system that is easy to transport and maintain.

HydroPower Ultra L

The HydroPower Ultra L uses three 6-litre Ultra resin bags. Its larger amount of resin allows it to produce more pure water before the resin charge needs to be replaced.

It is suitable for more frequent professional use or for areas where the S model would consume resin quickly.

HydroPower Ultra LC

The HydroPower Ultra LC also uses three 6-litre Ultra resin bags, but has a mobile configuration that makes the filter easier to transport.

The choice between Ultra L and Ultra LC mainly depends on how the system will be transported and used during work.

HydroPower Ultra resin

Ultra filters use pre-dosed resin bags with FloWater 2.0 technology, designed to distribute the water flow evenly inside the vessel.

The TDS meter allows you to check when the outlet water quality is no longer suitable and the resin needs to be replaced.

HydroPower Nano: hybrid system without electricity

The HydroPower Nano combines three treatment stages:

  • Pre-filter for sediment, particles and chlorine.
  • Nanofiltration membrane.
  • HydroPower Ultra DI filter for final treatment.

The system operates without a pump or electrical connection. It includes a flow optimiser that allows the flow rate, pressure and resin consumption to be adjusted according to the water hardness and type of work.

Unger states an approximate output of between 100 and 260 litres per hour, depending on the pressure, adjustment and quality of the incoming water.

It is available in two versions:

  • Complete HydroPower Nano: includes the HydroPower Ultra DI filter.
  • Basic HydroPower Nano: does not include a DI filter and is intended for users who already have a compatible one.

HydroPower RO reverse osmosis systems

The HydroPower RO systems produce pure water through several filtration stages. Depending on the model, they normally combine a pre-filter, reverse osmosis membranes and a final DI resin stage.

They include a pump to maintain operating pressure and require an electrical power supply.

RO systems are generally suitable for:

  • Frequent professional use.
  • Areas with hard water.
  • High Pure Water production.
  • Work with one or more outlets, depending on the model.
  • Situations where a DI-only filter would consume too much resin.

HydroPower RO S

The HydroPower RO S is a compact reverse osmosis system with one water outlet.

It has a three-stage filtration process, an electric pump and an approximate maximum output of 180 litres per hour in Pure Water mode.

It also includes a Boost function that supplies mains water at higher pressure for pre-washing particularly dirty surfaces. This function does not produce pure water.

HydroPower RO M and other RO systems

The HydroPower RO M offers greater production capacity and two water outlets, so it may be suitable when two poles are being used simultaneously.

Higher-capacity RO systems and earlier high-performance systems are also available. Before choosing one, it is advisable to consider the flow rate, number of outlets, electricity consumption, available space and maintenance requirements.

DI, Nano or RO: general comparison

  • HydroPower Ultra DI: simple system with no electricity, with maintenance mainly consisting of replacing the resin.
  • HydroPower Nano: hybrid system without electricity that reduces the load on the DI stage through nanofiltration.
  • HydroPower RO: electrically powered system with a pump and membranes, offering greater production capacity for frequent use or hard water.

Working height depends not on the filter but on the pole and its configuration. The same system can be used with different poles, brushes and hose lengths, provided that the connections and flow rate are compatible.

As official distributors and Unger Technical Service in Spain, we offer advice on comparing systems, calculating consumption and checking the necessary connections.

If you are unsure which system best suits your work, you can call us on 627 588 844.

HiFlo RO High Performance Solar
The HiFlo RO60S is the highest-flow reverse-osmosis system without a resin filter in the Unger range. It produces up to 750 l/h of pure water using a double RO membrane and a large carbon pre-filter (service life ~200,000 litres), without the need for a resin cartridge. Ideal for cleaning photovoltaic installations and large surfaces where the local water is soft enough to dispense with resin polishing. Integrated flow meter, 1.1 kW pump and stainless-steel frame
€11,002.86
HydroPower Ultra L and LC resin pack
Pack of 3 ion-exchange resin cartridges for a complete refill of the HydroPower Ultra L (DIUH2) and Ultra LC (DIUH3). Includes the 3 cartridges required to replace all the resin in the system in a single operation. Compatible exclusively with DIUH2 and DIUH3 — not suitable for the Ultra S (DIUH1), which uses the individual DIUBS cartridge. Reference DIUB3.
€181.82
Ultra HydroPower S Resin Pack
Box of 3 ion-exchange resin cartridges for the HydroPower Ultra S (DIUH1). The most economical option for Ultra S users who use resin regularly — cheaper than buying 3 DIUBS cartridges separately. Each cartridge contains 6 litres of resin for a complete refill of the equipment. Exclusively compatible with the DIUH1. Reference DIUB1.
€181.82
Unger Aluminium Starter Kit
Unger starter kit for pure water cleaning with a HydroPower Ultra S DI resin system and 6-metre AN60G aluminium pole. The lowest-cost option for starting to work with pure water. The pole can be extended to 9 metres by purchasing the AN30G extension handle separately. Includes a 27 cm soft nLITE brush, articulated angle and 20-metre hose. Reference DIUK1.
€656.34
HydroPower Ultra LC
The HydroPower Ultra LC uses the same filtration system as the Ultra L — 3 resin bags of 6 litres, up to 20 hours and 2,000 m² per refill — but is mounted on a stainless steel trolley with wheels. The option for professionals working across multiple locations who need to move the equipment easily without having to carry it. No electricity required, with an integrated digital TDS meter.
€1,030.89
HydroPower Ultra L
The HydroPower Ultra L is the highest-flow pure water filter in Unger’s Ultra range. With the same 3 resin bags as the Ultra S, it produces significantly more pure water per hour — up to 2,000 m² and 20 hours per refill, compared with 600 m² and 6 hours for the Ultra S. No electricity required, with an integrated digital TDS meter and flow regulator. The choice for professionals with frequent, intensive use.
€772.81
HydroPower Ultra S
The HydroPower Ultra S is the most compact and affordable pure water filter in the Unger range. It has a single 6-litre resin bag, dimensions of 30 × 31 × 35 cm and a flow rate of 120 l/h, providing up to 6 hours and 600 m² of work per refill. No electricity required, with an integrated digital TDS meter. The ideal starting point for pure water window cleaning.
€424.47
HydroPower resin bag with 4 bags
Bag containing 4 ion-exchange resin bags for older-generation HydroPower Unger equipment with a grey lid — models preceding the current Ultra range. Not compatible with HydroPower Ultra S (DIUH1), Ultra L (DIUH2) or Ultra LC (DIUH3). If you are unsure whether your equipment is compatible, call us before placing your order: 627 588 844 / 605 193 932. Reference DIB84.
€189.77
TDS METER
Pocket-sized Unger TDS meter for measuring the concentration of dissolved solids in water and checking purified water quality. Compatible with DI resin equipment and reverse osmosis systems. Essential for HydroPower equipment without an integrated meter or as an additional check. The image is for guidance only — the model supplied may vary but retains the same characteristics and quality. Reference ROTDS.
€34.81
Detergent dispenser
Unger detergent dispenser for pure water cleaning systems. It is installed in the hose system and mixes soap with pure water or mains water before it reaches the brush — essential for windows with heavily adhered dirt where pure water alone is not enough. Simple connection to standard garden hoses, easy filling and adjustable mixing control. Recommended for any pure water system. Reference HCDEU.
€49.87
Unger Mixed-Bed Resin (Bag)
25-litre bag of Unger mixed-bed ion-exchange resin for refilling the DI resin cartridges in HydroPower reverse-osmosis systems — RO S, RO M, RO60C and similar. 40% cation / 60% anion composition for producing water with TDS 0. The cost-effective alternative to a pre-filled cartridge for those who prefer to refill the cartridge manually. Reference DIB25.
€158.51