Do you need the Keurig water filter?
No. You can use the Keurig without a water filter and use tap water, if you wish. I use filtered water from my fridge, or purified bottled water (which is more pure that tap water). It has more to do with eliminating any bad taste in the water than anything functional on the brewer.
Do all Keurigs have water filters?
Keurig says its filters should be changed every two months. But if you’re not brewing every day, it suggests you change the filter every 60 tank refills. Most newer Keurig models (save for office-style, Rivo and K200 models) use the same charcoal filters, and they can be found in most major retailers that sell Keurigs.
Where is the water filter cartridge in a Keurig?
The water filter is located in the machine’s rear water reservoir. If you fully remove the water reservoir top, you will be able to access your coffee machine’s water filter.