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Filter By
Working height
Filtration system
What is the maximum height you need to work at?
Enter the approximate height of the highest point you need to clean.
How many hours per week do you use the system?
Intensive use with hard water consumes a lot of resin — above a certain volume, nanofiltration or reverse osmosis can be more economical.
Do you know the water hardness in your area?
Hard water uses more resin. If you do not know the hardness, select your country and province and we will estimate it for you.
Estimated data based on the provincial capital. It may vary depending on your municipality.
Do you need to transport the equipment frequently?
Some systems include a trolley to make transport easier.
What is your approximate budget?
Including equipment + pole + all accessories needed to start working.
What performance can you expect from a HydroPower DI with your water?
Enter your actual ppm or select your area to get an estimated guide to litres, working hours and surface area.
Calculator range: 1–2,000 ppm.
The area value is an approximate reference, not a measurement taken at your property.

At this ppm level, a HydroPower DI system may be uneconomical for regular use. We recommend considering a reverse osmosis system such as the Unger RO S.
Unger reference: incoming water TDS 275 ppm, output <10 ppm; laboratory values and approximate coverage. Values between reference points are calculator estimates, not an official Unger table.
Pure Water Kits
Professional pure water kits for high-level window cleaning
In this category, you will find a selection of professional pure water kits configured to make it easier to choose a complete system for high-level window cleaning.
Depending on the model, each pure water kit can combine a filtration system, a water-fed pole, a brush, hoses, connections and other compatible accessories.
These combinations bring together the main components needed to work with pure water from the ground in a single purchase. The exact contents may vary, so always check the details for each kit.
Use the category filters to compare kits according to working height, the pure water production system, pole material and included components.
Which filtration system does each pure water kit include?
Kits may incorporate different technologies to produce pure water:
- DI filters: use ion exchange resin to remove dissolved minerals from the water.
- RO reverse osmosis systems: use several filtration stages and an osmosis membrane to reduce a large proportion of the minerals before the final treatment.
- Hybrid systems: combine different filtration technologies, depending on the equipment.
Unger mainly uses deionisation and reverse osmosis to produce pure water for professional window cleaning.
Pure water kits for different working heights
The height stated for each kit depends on the length of the included pole and the configuration of its sections. The user's height, the pole angle and the actual position of the window must also be taken into account.
For moderate heights, an aluminium, composite or carbon pole may be sufficient. For frequent work or greater heights, a lighter and more rigid pole can improve control and reduce effort.
Check what each kit includes
Before buying a pure water kit, check the product details for:
- The included filter or pure water production system.
- The pole material and length.
- The type and width of the brush.
- The supplied hoses, adapters and connections.
- The consumables or spare parts that the system will require.
If you are unsure which pure water kit best suits your work, you can call us on 627 588 844.
Unger Carbon 16K Basic Kit
Unger Expert Kit L and LC 16K Up to 12.5 m
What does a pure water kit include?
The contents depend on each model, but a professional pure water kit may include the following items:
- Telescopic water-fed pole.
- DI filter, reverse osmosis system or hybrid system.
- Brush for pure water cleaning.
- Compatible hoses, connections and adapters.
- Equipment-specific accessories or consumables.
Some kits may require a supply hose, a specific connection, sufficient water pressure or other items that are not included. Always check the detailed product contents.
Why choose a complete kit?
- It brings the main system components together in a single configuration.
- It makes it easier to choose a pole suitable for the intended height.
- It allows you to compare DI, reverse osmosis and hybrid systems.
- It reduces the risk of forgetting components needed to complete the installation.
- It makes it easier to compare different working configurations.
Which pure water kit should you choose?
The choice mainly depends on the working height, the quality of the incoming water, frequency of use and the amount of pure water you need to produce.
DI filters may be suitable for occasional work, moderate consumption or areas with a lower concentration of minerals. Reverse osmosis systems are generally more suitable for frequent use, high production or areas with hard water.
You should also consider the weight and rigidity of the pole, the space available for transporting the equipment and whether one or more people will be working at the same time.
For more detailed information on how this method works, see our guide to window cleaning with pure water.
Advice on choosing your pure water kit
As official Unger distributors and an Unger Technical Service Centre in Spain, we can help you compare kits according to water hardness, usual working height and workload.
Also see our carbon poles or window cleaning kits.
