When it comes to getting healthy drinking water straight out of the kitchen tap, there simply are no guarantees. From hard water along the coast to urban scares over lead and other heavy metals, virtually everyone needs some sort of home filtration for their municipal water supply. That can be as simple as a faucet- or refrigerator-mounted filter, or an elaborate and expensive water-softening system mounted in another room of the house. But there is a happy medium for getting professionally purified water that doesn’t require a physical plant in your garage and won’t cost more than a year’s car payments to achieve. Here are three great options to choose from.