If you do not have a water filter in your Keurig yet, you can purchase a water filter to install. Visit the Keurig Support Page to make sure you’re buying the right one for your model. Models that support water filters include Keurig Duo, Keurig Duo Plus, K-Supreme, K-Slim, K-Cafe, K-Elite, K-Select, K-Classic, K-Express, and K145. Some smaller models, like Keurig Mini or K-Mini Plus, do not have water filters or the option to add a water filter.
The bottom of the filter-holder unit will be locked into plastic grooves on the bottom of the water reservoir. You may need to rock the filter-holder unit back in place or give it a sharp tug to remove it. If you have a Classic series Keurig, your filter will be black with a circular timer on the end. If you have a K200 Plus, the filter will be clear and shorter, while the K300 and higher models have filters that are tall, thin, and clear.
Throw the old filter into the trash.
Filter sets are relatively inexpensive. Depending on the number of individual filters in a package, the cost can range between $5 and $10.
The filter will float initially, but will have absorbed water and sunk to the bottom of the cup or bowl after 10 minutes.
Give the sides of the lower filter holder a quick rinse too.
Older filter models may have a reminder dial on the top of the filter. If yours does, set the dial ahead 2 months so it counts down to remind you to change your filter.
If the filter doesn’t click into place, check to see that you’ve properly aligned the grooves on the bottom of the lower filter holder with the raised plastic on the floor of the Keurig’s water reservoir.
