Products Drinking Water Filter Systems Drinking Water Filter Systems Culligan's drinking water systems reduce common contaminants found in tap water and deliver better, healthier water for your whole family to enjoy. SCHEDULE YOUR FREE WATER TEST TOP PICK Aquasential® Smart Reverse Osmosis Drinking Water System Our smartest RO system available: Track reduced contaminants, monitor cost savings and access an unlimited supply of better-tasting water with a customized solution based on your home’s needs. View Product TOP PICK Aquasential® Reverse Osmosis Drinking Water System Better water made just for you: Enjoy great-tasting filtered water that’s cleaner and safer for your family with a system that’s tailored to your home’s specific water needs. View Product TOP PICK Aquasential® Tankless RO Drinking Water Filtration System Offers on-demand, high-quality filtration using advanced technology, including water quality and filter cartridge life monitoring, leak detection, automatic cleaning, and a space-saving design. View Product Not Sure Where to Start? Learn about reverse osmosis systems, how they work, what they fix and whether an RO system is the right solution for your problem water. Everything You Need to Know About Reverse Osmosis Learn how reverse osmosis can get you better water for drinking, cooking and cleaning. Read More 10 MIN READ How Reverse Osmosis Works 1 MIN WATCH Why Get a Reverse Osmosis System? 1 MIN WATCH Benefits of Having a Home Reverse Osmosis System 4 MIN READ Additional Drinking Water Filtration Products Learn more about these additional Drinking Water Filtration products and accessories below, or get started with a free water test to find out which drinking water solution is right for you. Get A Free Water Quality Test Aqua-Cleer® Advanced Under Sink Water Filtration System AC-30 Good Water Machine® Under Sink Water Filtration System ClearLink PRO Home Under Sink Water Filtration Wireless Accessory Culligan Connect App for RO Mineral Boost Cartridge Culligan 100% Satisfaction Guarantee If you are dissatisfied with your Culligan product for any reason within 30 days of your purchase, Culligan will remove the product and refund the purchase price.* About Culligan Culligan International History Awards News Corporate Responsibility Our COVID-19 Response Work with us Careers Franchising Contact 1-877-541-0382 Contact Us Culligan Worldwide © 2021 Culligan | Terms and Conditions | Privacy | Sitemap *Applies to Culligan-branded standard household equipment only. Zip Water and HANS by Culligan products are excluded. Dealer participation may vary. Live chat: Culligan Offline