Marin H2O: (415) 479-8411
24 hours: (800) 404-8411
(415) 479-8411

Marin H2O is a Family Owned, Family Operated Business


Since 1962 Marin H2O has been a franchise of Culligan International. Culligan is the Most Recognized, Experienced and Qualified Name in Water Treatment

  • Culligan International was founded in 1936 — 75 years of industry leadership
  • Most WQA-certified sales, service and installation people in the industry
  • Full-service dealer network from coast to coast and in more than 1100 locations worldwide

Highly Awarded & Certified

  • Gold Series Softeners
  • HE Softener Series- Highest Efficiency Water Softener on the market & Consume’sr Digest Best Buy
  • WQA, NSF & UL Certifications

At Culligan, we’ve seen virtually every household and drinking water problem imaginable and we have 75 years of experience to treat your home or businesses unique water needs.

Free Analysis

Don’t wonder what’s in your water, your Culligan Man can tell you. Testing of your water by a licensed expert is the key to determining if you have a water problem.

Ask the Experts

Water is an indispensable part of life. With Culligan you have access not only to state-of-the-art products, but also to local water professionals that know the region’s water quality.

Water Systems

Each drinking water system brings great tasting water right into your home and can each reduce bad taste and odor.

Special Offers

See our current Culligan water systems specials and enjoy healthy, high-quality water with Culligan. Get better deals on your new water system!

Just say – Hey Culligan Man!