Smart under-sink water filter
Reverse osmosis Ecsosoft RObust CROSS 90 Balance with mineralization
Ensure perfectly clean and tasty water directly from your kitchen faucet. The RObust CROSS 90 Balance is a compact filtration system that is easily installed under the sink and utilizes proven reverse osmosis technology. It removes up to 99.8% of impurities, including bacteria, viruses, chlorine, heavy metals, and microplastics – and additionally enriches the water with natural calcium.
Thanks to its smart features, the device monitors water quality on its own, alerts you when it's time to replace the filters, and significantly simplifies maintenance for you. Changing the filters is easy, quick, and can be done without any tools.
Key features
- Removes up to 99.8% of contaminants including chlorine, microorganisms, and heavy metals
- Enriches water with calcium - for a naturally balanced taste and health benefits
- Water savings - saves water at a 50% yield.
- Automatic membrane flushing for extended system lifespan.
- No risk of overflow - the device automatically shuts off in case of a malfunction or water leak
- You can quickly and tool-free replace the filter - the system will alert you when it's time
- Narrow format, big performance - It doesn't take up unnecessary space, yet it can handle everything it needs to
Automatic membrane flushing
The device has an intelligent function that automatically flushes the membrane – thanks to this, it maintains high efficiency for a longer time. The flushing process occurs:
- when connecting the system to the network,
- 5 minutes after each water withdrawal,
- and after each 12-hour break in use.
The result is long-term reliability and less worry about maintenance.
Leak protection
The device automatically shuts off the water supply if it detects any leak in the filter. This prevents flooding and protects your kitchen or home from unnecessary damage.
Intelligent filter replacement indication
The system will alert you when it's time to change the filter. It combines:
- Colored LED indicators on the faucet and front panel
-
Audio alerts that unmistakably inform you:
- 1 short beep = filter will soon be depleted
- 2 short beeps = filter needs to be replaced
At the same time, it monitors water quality and alerts to its deterioration.
Real-time monitoring
Thanks to the smart LED indicator on the battery, you can easily check the filter status at any time. This ensures that you always drink clean and safe water – without guesswork or unnecessary replacements.
Reverse Osmosis Filtration Process CROSS 90 Balance
Uses 3 interchangeable filter modules:
- Complex polypropylene pre-filter with activated carbon
The CF prefilter captures deposits and mechanical impurities such as rust and sand, while also reducing the content of chlorine, petrochemicals, and organic compounds.
Lifespan: ~12 months/~4000 liters. - High-performance reverse osmosis membrane
The RO membrane removes up to 99.8% of harmful substances, including bacteria and viruses. Lifespan/capacity: ~24 months/~8,000 liters. - Mineralization post-filter with activated carbon
The MCB post-filter improves the taste and smell of purified water while also enriching it with minerals.
Lifespan/capacity: ~12 months/~4,000 liters.
Technical parameters
- Inlet water pressure: 2 – 5 bars
- Optimal operating pressure: 3 bar
- Inlet water temperature: +5 to +30 °C
- Flow rate: 1.5 l/min
- Voltage/frequency: 230 V/50 Hz
- Power consumption: 120 W
- Operating temperature range: +5 to +40 °C
- Water supply connection: 1/2" thread
- Inlet connection: 3/8", white hose
- Output connection: 1/4", white hose
- Drain connection: 1/4", red hose
- Dimensions (H × W × D): 435 × 140 × 458 mm
- Weight: 11 kg
Requirements for source water
For the device to operate reliably and efficiently, it is recommended that the incoming water meets the following parameters:
- pH range of water: 6.5 – 8.5
- Total Dissolved Solids (TDS): ≤ 1500 ppm
- Water hardness: <500 mg/l CaCO₃ (<28 °dH)
- Free chlorine: <0.5 mg/l
- Iron content: <0.3 mg/l
- Manganese content: <0.1 mg/l
- Chemical oxygen demand (COD): ≤ 5 ppm O₂
- Total number of microorganisms: <50 CFU/100ml
- Presence of E. coli bacteria: ≤ 3 per 100 ml
Note: If the quality of the incoming water is significantly outside these values (e.g., high chlorine, iron, or microbiological contamination), it is recommended to use pre-treatment of the water (e.g., carbon filter, mechanical filter, UV lamp).
Quality of mineralized water after filtration
- pH range of water: 6.5 – 7.7
- Total mineral content: 40 – 70 mg/L
- Calcium: < 4 – 6 mg/l
Values may vary slightly depending on the quality of the input water.
Contents of the package
- Reverse osmosis CROSS 90 Balance,
- Kitchen faucet with LED indicator,
- Set of 3 replacement filters (CF, RO, MCB)
- Three-way connection with valve
- Drainage clamp
- PE hoses (3 pcs),
- Power supply (230V)
- User Manual
Video tutorial for installation
If needed, we can also provide installation of the equipment throughout Slovakia. Contact us We are happy to help you.
Are you looking for the same reverse osmosis without mineralization?
Check out the model RObust CROSS 90 without mineralization post-filter – ideal for those who prefer completely pure water without added minerals.