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Cube Water Softener From 10 to 25 Liters
Water Softeners
Introducing the ECOSOFT CUBE Water Softener
Compact water softener for household water treatment
The ECOSOFT CUBE 10, 15 and 25 water softeners are compact, high-performance solutions designed for household water treatment.
They effectively reduce limescale in your water by removing calcium and magnesium ions, protecting your plumbing fixtures, household appliances, and heating system.
Thanks to their ultra-compact all-in-one design, they fit easily into small spaces such as a kitchen or utility room, while delivering performance suited to both apartments and houses.

Key Features
Ease of use and automatic management
- Compact design : ideal for tight spaces
- F105B smart valve : automatic regeneration management
- Vacation mode : resin protection during extended absences
- Low-salt alert : simplified maintenance
- Brine dry function : optimized salt and water consumption
- Built-in mixing valve : water hardness adjustment
- Smart leak protection function
The system operates fully automatically using ion exchange technology, ensuring a continuous supply of softened water without manual intervention.

Included Items
Standard configuration
- Complete water softener with built-in resin
- 230V / 12V transformer
- 3/4" bypass connection kit
- Drain and overflow tubing
- Fastening clamps

Installation & Maintenance
Care and maintenance
Simple everyday maintenance
The ECOSOFT CUBE water softener is designed for ease of use and requires little maintenance.
- Check the salt level every 2 to 4 months
- Keep the salt tank 2/3 full
- Never let the salt run out completely
- Clean the salt tank occasionally
Smart alerts: the system alerts you when salt is low and maintenance is needed.
Vacation mode: it automatically protects the resin during extended periods of inactivity.
Documents
Documentation
Data sheets and user manuals
Specifications
Technical specifications
ECOSOFT CUBE model comparison
| Specifications | CUBE 100 | CUBE 150 | CUBE 250 |
|---|---|---|---|
| Max. flow rate | 1.6 m³/h | 2.0 m³/h | 2.5 m³/h |
| Resin volume | 10 L | 15 L | 25 L |
| Capacity (at 250 mg/L) | 2 m³ | 3 m³ | 5 m³ |
| Salt consumption | 1 kg | 1.5 kg | 2.5 kg |
| Water consumption | 100 L | 150 L | 250 L |
| Regeneration time | 80 – 110 min | ||
| Inlet pressure | 2 – 6 bar | ||
| Power supply | 230V / 50Hz | ||
| Dimensions (H × W × D) | 543 × 450 × 320 mm | 721 × 450 × 320 mm | 1,053 × 450 × 320 mm |
| Weight | 21 kg | 27 kg | 40 kg |
| Max. hardness | 350 mg/L CaCO₃ | 500 mg/L CaCO₃ | 650 mg/L CaCO₃ |
Operating conditions
Inlet water quality and conditions
- Iron: 0.2 mg/L
- Manganese: 0.05 mg/L
- Water temperature: 5 – 38°C
- Pressure: 2 – 6 bar
- Recommended pre-filtration: 100 µm
Calculate Your Needs
How do you choose your resin volume?
Size your water softener in 4 steps
1. Estimate your daily water needs
Simply take your bills for the year, add up the water volumes billed and divide by the number of days you were at home.
Reference point: average water consumption in France is around 150 liters per day per person.
2. Decide on the water volume between regenerations
For example, if you live with your partner, you use approximately 300 liters of water per day.
If your goal is to regenerate the resin in your Ideal every 7 days on average, that gives you 2,100 liters.
3. Measure your water hardness
Tests are available as strips or a liquid at any home improvement store.
4. Calculate your resin needs
Calculation formula
Resin volume = Regeneration volume × TH / 5,000
Water hardness in France
Indicative map of water hardness by region


