![Amazon.com: Brita Standard Water Filter, BPA-Free, Replaces 1,800 Plastic Water Bottles a Year, Lasts Two Months or 40 Gallons, Includes 1 Filter, Kitchen Essential: Pitcher Water Filters: Tools & Home Improvement Amazon.com: Brita Standard Water Filter, BPA-Free, Replaces 1,800 Plastic Water Bottles a Year, Lasts Two Months or 40 Gallons, Includes 1 Filter, Kitchen Essential: Pitcher Water Filters: Tools & Home Improvement](https://m.media-amazon.com/images/I/71UZ8Nfk2aL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Brita Standard Water Filter, BPA-Free, Replaces 1,800 Plastic Water Bottles a Year, Lasts Two Months or 40 Gallons, Includes 1 Filter, Kitchen Essential: Pitcher Water Filters: Tools & Home Improvement
![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
![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)