Water Filtration Water Filtration For over 80 years, Culligan’s water filtration systems have improved water quality for thousands of families worldwide. Culligan’s Under the Sink Filtration and Whole House Filtration systems can both remove common contaminants* like: Iron (rust stains in your tub) Sulfur (rotten egg-like smell) Harmful chemicals Sediment (floating sand-like particles in your water) Schedule a Free In-Home Water Test *Contaminants may not necessarily be in your water Whole Home Water Filtration Whole home filtration solutions improve the water at the point it enters your home. Cleaner, fresher, better tasting water at every tap. See All Whole Home Filtration Systems Drinking Water Filtration An installed Culligan Drinking Water System provides an endless supply of cleaner, safer, great-tasting water perfect for making your favorite drinks, washing vegetables or boiling pasta. See Drinking Water Systems 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