Last month we noticed that a light on our refrigerator was blinking indicating that something needed to be replaced. We have never had to replace anything in it before so we were not sure where to buy a water filter wf2cb. We decided to just turn to the Internet. We find the best selection and the best prices on things there, and it is a lot easier than driving around to a bunch of stores that do not have what we need. We have found a few websites that carry the part that we are looking for, so we are going to order it soon.