The Dosal 3/4" filter is a compact, inline polyphosphate dosing unit designed to protect washing machines and dishwashers from limescale buildup. Installed between the appliance and the water supply, it gradually doses polyphosphate to inhibit scale formation caused by hard water minerals.
Ideal for domestic use, it helps extend appliance life, improve efficiency, and reduce detergent use. Simple to install, refillable, and fully compliant with EU drinking water regulations.
