Culligan is a global leader in water treatment solutions, providing water softeners, filtration systems, and drinking water dispensers for residential and commercial use.
Culligan International Company, commonly known as Culligan, is a heritage brand specializing in water treatment products and services. Founded in 1936, the company has become synonymous with clean water, offering a vast array of solutions including whole-house water softeners, reverse osmosis drinking water systems, salt-free conditioners, and advanced filtration pitchers.
Culligan serves both homeowners and businesses, delivering smoother, cleaner water that protects appliances and improves health. The brand's product portfolio extends from professionally installed systems supported by the extensive "Culligan Man" dealer network to DIY retail products like undersink filters, faucet mounts, and the ZeroWater pitcher line. Whether addressing hard water, chlorine taste, or specific contaminants like lead and PFAS, Culligan provides certified technologies tailored to local water quality needs.
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Filter life varies by model. For pitcher filters like ZeroWater or Gravity systems, it is typically based on gallon capacity (e.g., 20-50 gallons) or TDS readings. Whole house pre-filters often require changing every 3 to 6 months depending on sediment levels.
A water softener removes hardness minerals (calcium and magnesium) using salt-based ion exchange. A salt-free conditioner (like the Aquasential Salt-Free Converter) neutralizes contaminants to prevent scale buildup without removing minerals, meaning TDS levels will remain unchanged.
Replacement filters and parts for retail products can be purchased at shop.culligan.com or culligandiy.com. For dealer-installed whole house systems, it is best to contact your local Culligan dealer.
For retail product support, call (800) 721-7360 or email Customerservice@culligan.com. For dealer-installed systems, contact your local representative or use the dealer locator on the Culligan website.