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pcb - How does the Brita water filter pitcher "change filter" indicator work? What is that gold cylinder? - Electrical Engineering Stack Exchange
![BRITA Water Filter Memo Timer is FREE | NO NEED TO REPLACE BATTERY | How To Change Brita Timer - YouTube BRITA Water Filter Memo Timer is FREE | NO NEED TO REPLACE BATTERY | How To Change Brita Timer - YouTube](https://i.ytimg.com/vi/OkeEHgPytD0/maxresdefault.jpg)
BRITA Water Filter Memo Timer is FREE | NO NEED TO REPLACE BATTERY | How To Change Brita Timer - YouTube
![pcb - How does the Brita water filter pitcher "change filter" indicator work? What is that gold cylinder? - Electrical Engineering Stack Exchange pcb - How does the Brita water filter pitcher "change filter" indicator work? What is that gold cylinder? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/7MxyZ.png)