Return item. Functional customer returns may show cosmetic defects, imperfections or light signs of use, but they have no damage. Non-essential accessories may be missing, but they are still functional. They may not have their original packaging or may have no packaging at all. They have not been used for longer than 14 days (the time needed to return them to the supplier). We provide a 1-month warranty on all won lots. Won lots are shipped within 7 days after payment. Return shipping costs are at your own expense.

About this item Size and features: refill with WK polyphosphate cartridges for reliable protection against limescale deposits and corrosion, practical blister pack with 10 super-concentrated tablets in a compact format Benefits: polyphosphate acts as an anti-limescale agent, self-disinfecting agent and protects against limescale deposits and corrosion, improves water quality in the home and extends the service life of the boiler Correct use: remove the cap, the tablet is inserted easily and conveniently, even with the plastic capsule in the dosing unit, ideal for water treatment in the home, guarantees optimal results with minimal installation and maintenance effort Versatility: WK polyphosphate anti-limescale cartridges for boilers are universal, suitable for any type of dosing unit and compatible with a wide range of equipment