Culligan designs, engineers, and services a comprehensive lineup of residential and commercial products, including high-efficiency water softeners, multi-stage reverse osmosis drinking systems, whole-home filtration units, and award-winning bottleless workplace coolers. By pairing advanced hardware with smart technology like the Culligan Connect app, and anchoring their services with free in-home water testing, Culligan provides tailored, professional solutions to combat everything from hard water scale and foul odors to modern contaminants like lead and microplastics.