FOSE100 limescale filter for washing machines (Ecosoft Scalex): protects the machine and heating elements. 3/4″, 400 wash cycles. €19.90.

The FOSE100 limescale filter for washing machines (Ecosoft Scalex FOSE100) is a compact filter with an active limescale agent for cold tap water. According to the seller, it reduces limescale formation and protects the washing machine and its heating elements from calcium and magnesium build-up. The seller also states that it helps with more efficient washing, keeps laundry softer and supports lower energy use, fewer faults and a longer appliance life. The page cites no tests or standards for these claims.

The FOSE100 limescale filter for washing machines contains a filter medium with an active agent against limescale, which reduces the build-up of calcium and magnesium on heating elements. It is intended for cold tap water only. The page notes that sediment, iron and organic matter can clog the medium and stop the active agent from being released; it does not say how to check for this. If your water contains such impurities, ask us about suitable pre-filtration.

Install the FOSE100 limescale filter for washing machines on the cold-water supply with a 3/4″ connection. The specifications call for vertical installation; the text describes it as recommended, so keep it vertical. Before first use, rinse the filter with water for 2–5 minutes. The package contains the filter with medium; the page does not list any other parts.
| Model | FOSE100 (Ecosoft Scalex FOSE100) |
| Filtration type | limescale protection (active agent) |
| Water | cold tap water only |
| Max. working pressure | 7 bar |
| Working temperature | 5–43 °C |
| Connection | 3/4″ |
| Installation | vertical |
| Cartridge life | 400 wash cycles or 20,000 litres |
| Dimensions | 130 mm × 65 mm (diameter/length not specified) |
| Head / housing / O-ring | ABS / SAN Luran / EPDM |

For boilers, instantaneous heaters and heated taps, see the FOSE200 limescale filter. For other limescale solutions, see the ScaleArmor POP limescale filter, or the Safe Pro polyphosphate filter for washing machines and dishwashers. Call us at +386 41 567 794 for advice.
Price and delivery: €19.90 incl. VAT (€16.31 excl. VAT). The product is in stock. The page gives no delivery terms or warranty; ask us. Viewing and pickup in Murska Sobota by prior arrangement (one day ahead).
For optimal protection, the seller recommends replacing the filter medium of the FOSE100 limescale filter for washing machines every 6 months. The page also states a cartridge life of about 400 wash cycles (enough for daily use for a year), which is longer than the 6-month recommendation; ask us which interval to follow. No replacement price is given.