Polyphosphate Dosing Units Anti-scalant dosing devices Anti-scale filter to protect and extend the lifespan of installations and appliances. Reduces scale buildup in pipes and machines heating elements of household appliances, such as washing machines, water heaters or dishwashers. Easy and practical installation, but polyphosphate media dissolves progressively, so refill when empty. Refilling must be carried out by an authorised technical service (TAS). 723715 Anti-scaling water pre-filter Technical: Flow rate: 1T/M3Filter accuracy: 40 micronsAmbient temperature: 5-40CWorking pressure: 3-8 barFitting: 1/2″ female and male thread 723716 Anti-scaling water pre-filter Technical: Flow rate: 1T/M3Connection: 1/2″ female and male threadWorking pressure: 3-8 barAmbient temperature: 5-40°CFilter accuracy: 40 microns