Culligan has been a trusted name in water treatment since Founded 1936, based in United States. As part of Advent International, Culligan benefits from extensive R&D and manufacturing resources. The brand is particularly known for America's most trusted water treatment brand with full-service local dealer network and the iconic 'Hey Culligan Man!' campaign. Culligan is positioned in the premium price tier, making it a premium investment for water treatment.
Culligan Water Treatment
by Advent InternationalCulligan offers a complete water treatment ecosystem: whole-home water softeners, reverse osmosis drinking water systems, whole-house filtration, bottled water delivery, and commercial/industrial treatment systems. Their local dealers provide free water testing, professional installation, ongoing maintenance, and salt delivery. The Aqua-Cleer and Aquasential product lines represent their latest residential offerings.
PremiumTop-tier materials, design, and warranty
Culligan Water Treatment Product Lines
Aquasential Smart HE SoftenerAqua-Cleer Drinking Water SystemTotal Defense FiltrationCulligan Bottled WaterCommercial/Industrial Systems
Why Choose Culligan for Water Treatment?
Culligan stands out in the water treatment market because of America's most trusted water treatment brand with full-service local dealer network and the iconic 'Hey Culligan Man!' campaign. Their products carry 4 industry certifications, including NSF Certified, WQA Gold Seal, NSF/ANSI 44, giving homeowners confidence in quality and compliance. Culligan backs their water treatment with a Varies by product and dealer; water softeners typically carry 1-year parts and labor; lifetime on tanks, which shows commitment to long-term reliability. With 5 dedicated product lines — Aquasential Smart HE Softener, Aqua-Cleer Drinking Water System, Total Defense Filtration, Culligan Bottled Water, and more — there's a Culligan option for virtually every need and budget.
Certifications & Standards
NSF CertifiedWQA Gold SealNSF/ANSI 44NSF/ANSI 58
Warranty & Support
WarrantyVaries by product and dealer; water softeners typically carry 1-year parts and labor; lifetime on tanks
Phone Support1-855-269-4699
Official Websitehttps://www.culligan.com
Where to Buy Culligan Water Treatment
Water Treatment How-To Guides
View All →How to Install a Reverse Osmosis System
Install an under-sink reverse osmosis system for the cleanest drinking water at home -- feed water connection, filter mounting, storage tank, drain saddle, dedicated faucet, and the critical initial flush.
How to Test Your Water Quality
Test your water with DIY strips, reagent kits, or certified lab analysis -- what to test for, how to collect samples, how to read results, and what treatment actually fixes common contaminants.
How to Change Water Filter Cartridges
Swap out sediment, carbon, and specialty cartridges in whole-house and under-sink systems -- the right filters, the right schedule, and the correct order for multi-stage setups.
Common Water Treatment Problems
View All →Bad Taste or Odor in Water
Water that tastes or smells off -- chlorine, rotten eggs, metallic, musty -- has a specific cause for each type. Identifying what it tastes or smells like is the fastest path to the right fix.
Hard Water Buildup
White, chalky deposits on everything -- faucets, shower heads, glass doors, inside pipes and water heaters. Calcium and magnesium restrict flow, kill efficiency, shorten appliance life. About 85% of US homes have hard water.
Low RO System Output
RO system filling slowly, weak trickle, or running out of water? Clogged pre-filters, worn membrane, low feed pressure, or waterlogged tank. Most fixes are filter replacements or pressure adjustments.
Water Treatment Types
View All →Water Treatment Buying Guides
View All →Culligan Water Treatment FAQ
Is Culligan a good brand for water treatment?
Culligan International is one of the world's most recognized water treatment brands, founded in 1936 by Emmett Culligan in Northbrook, Illinois. With over 800 franchise dealers in 90 countries, Culligan provides comprehensive water solutions from whole-home softeners and filtration to bottled water delivery and commercial/industrial systems. Their local dealer model ensures professional installation, maintenance, and salt delivery — a full-service approach that differentiates them from DIY competitors. The 'Hey Culligan Man!' advertising campaign became one of the most iconic in American marketing history.
What warranty does Culligan offer on water treatment?
Culligan offers Varies by product and dealer; water softeners typically carry 1-year parts and labor; lifetime on tanks.
Where is Culligan made?
Culligan is based in United States, headquartered in Rosemont, Illinois.
What price range does Culligan water treatment fall into?
Culligan is positioned in the premium price tier for water treatment. You pay more but get superior quality, materials, and warranty coverage.
What water treatment product lines does Culligan offer?
Culligan offers 5 water treatment product lines: Aquasential Smart HE Softener, Aqua-Cleer Drinking Water System, Total Defense Filtration, Culligan Bottled Water, Commercial/Industrial Systems.
What certifications does Culligan have for water treatment?
Culligan holds 4 certifications including NSF Certified, WQA Gold Seal, NSF/ANSI 44.