

Unger hydroPower RO M system
Designed for professional UK window cleaners and tradespeople, this high-performance, mobile reverse osmosis system delivers 100% pure demineralised water for streak-free, spotless cleaning of windows, solar panels, and other surfaces—without chemicals. A genuine 'Made in Germany' product, the hydroPower RO M combines exceptional performance with effortless operation to boost your efficiency and results.
Superior cleaning results: The advanced 3-stage filtration process produces perfectly pure water. A combi-pre-filter removes chlorine and particles, dual RO membranes filter out up to 98% of minerals, and a final DI resin stage polishes the water to a 0 TDS reading for guaranteed spot-free drying.
Boost your productivity: With an impressive pure water output of up to 350 L/hr, this powerful system is ideal for 1–2 operators working simultaneously on larger or multiple jobs.
Easy, cost-effective maintenance: The innovative FastLock opening mechanism allows filter cartridge changes in seconds, without any tools. This dramatically reduces downtime, and the integrated TDS meter lets you monitor performance easily, extending the life of your membranes and resin.
Designed for portability: The robust, stainless steel frame and solid rubber wheels make the hydroPower RO M easy to transport between sites, even fitting neatly into the boot of a vehicle.
Durable and reliable: Built with high-quality materials and durable metal quick-release connectors, this system is engineered for longevity and designed to eliminate leaks.
For professional window cleaning equipment that works as hard as you do, invest in the Unger hydroPower RO M system. It's the intelligent, reliable, and efficient solution for achieving flawless, streak-free results every time.
The Unger hydroPower RO M (RO35C) uses a three-stage filtration process to produce 100% pure, demineralised water for streak-free cleaning. Unlike standard tap water, this pure water contains no total dissolved solids (TDS), so it dries without leaving spots or streaks on surfaces.
Here is a step-by-step explanation of how the system works:
The result is laboratory-grade pure water that provides superior cleaning power without the need for additional chemicals. The system also features an integrated TDS meter that continuously monitors the water quality, letting you know when it's time to change the filters to maintain peak performance.
Up to 350 L/hr output: This is the maximum flow rate the machine can produce. It's powerful enough to allow one or two operators to work simultaneously and is best suited for larger jobs.
Adjustable flow rate: You can optimise the flow rate to match the specific job requirements. Reducing the flow for lighter cleaning jobs extends the life of your RO membrane and DI resin.
Window size and dirtiness: Larger or dirtier windows require more water and more time spent rinsing.
Operator technique: Factors like flow rate settings and the time spent rinsing can vary between operators. A professional window cleaner is using an average of 25–30 litres of pure water to clean a standard 3-bedroom house in the UK.
Water hardness: The lifespan of your filters, particularly the DI resin, depends on the hardness of your local tap water. In hard water areas, the resin will saturate faster and need replacing sooner, which can indirectly affect your water usage efficiency. The integrated TDS meter helps you monitor this and know when to change your filters.
Initial clean: If cleaning a window with pure water for the first time, it's essential to perform a more thorough clean, paying attention to frames and seals. This often requires more water than subsequent maintenance cleans.
To use the Unger hydroPower RO M (RO35C) with a water-fed pole, you'll need to follow a simple setup process to connect the pure water system to your cleaning pole. The system pressurises the water, which is then fed through a hose up the pole to a specialised brush head.
Once the system is set up, the cleaning process is straightforward:
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Unger Hydropower RO35C flyer
Download (553.92KB)Unger Hydropower RO35C Data Sheet
Download (722.02KB)Unger HydroPower RO35C Manual
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