Most households solving a taste, odor, or specific contaminant concern do fine with an under-sink system — it treats the water you actually drink and cook with, at a fraction of whole-house cost. Whole-house makes more sense if the concern affects every tap: chlorine irritation in showers, heavy sediment throughout the plumbing, or wanting every fixture covered, not just the kitchen. If you're not sure which applies to you,
Find Your System can help you think it through.