Wrekin Water Softeners have developed this unit to to be connected in-line to monitor the volume and flow and to take the guess work out of when to change the filter. The unit is programmed with the filters capacity and water flow is recorded, reducing the capacity setting. At zero, an audible alarm prompts a filter change. After the filter is changed, the unit is reset at the touch of a button. If the filter is ever changed for a different capacity filter, then just re-programme the revised capacity and save it to memory

Unit switches off automatically when no water flows so as to conserve battery life. The unit retains data even at battery changeover.


This low cost item is an excellent addition to any cold water filter system. It takes out the guess work on when the filter should be changed. Adapters supplied for installation to 1/4in or 3/8in Tube

This unit is designed to count down the Capacity for a single Filter.