![Amazon.com: Brita Large Water Filter Pitcher for Tap and Drinking Water with SmartLight Filter Change Indicator + 1 Elite Filter, Reduces 99% Of Lead, Lasts 6 Months, 10-Cup Capacity, Black: Home & Kitchen Amazon.com: Brita Large Water Filter Pitcher for Tap and Drinking Water with SmartLight Filter Change Indicator + 1 Elite Filter, Reduces 99% Of Lead, Lasts 6 Months, 10-Cup Capacity, Black: Home & Kitchen](https://m.media-amazon.com/images/I/71lY0-IefCL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Brita Large Water Filter Pitcher for Tap and Drinking Water with SmartLight Filter Change Indicator + 1 Elite Filter, Reduces 99% Of Lead, Lasts 6 Months, 10-Cup Capacity, Black: Home & Kitchen
![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/2hrH2.jpg)
pcb - How does the Brita water filter pitcher "change filter" indicator work? What is that gold cylinder? - Electrical Engineering Stack Exchange
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