Water filter systems

I’m in the market for a new water filter system. I never realized how many different types and brands there are to choose from. I took a trip to the local hardware store, and found so many products ranging in price and durability. I don’t know much about buying them and what are the best features to have, so I guess I’ll have to wait until my husband can make the trip with me to help me pick out which is best, or I could probably order them on line. There are many on line sites where I could just purchase it from the comfort of my own home. That’s probably what I will do.