Why buy bottled water when you can get perfect H2O right from your kitchen tap? Well, maybe not perfect. Depending on your city’s filtration system, your home tap water may contain any number of contaminants. A good water filter ensures that you have clean, healthy, and delicious water whenever you feel parched. If you’re worried about what’s coming out of your faucet, you can get a water-quality report from your utility.

Not all filters do the same tasks. Some are just meant to get rid of contaminants that affect the taste of your water, while others tackle more serious concerns, like lead. NSF International can help determine if your filter actually removes lead. Here are some of the best home water filtration systems on the market today.