O3 Water Systems manufactures the CASCADIAN Solutions and Integrated Cartridge Solutions lines of water treatment products and is a wholesale distributor of complementary products that when combined provide the very best treatment solutions available. Founded in 1994 in Snohomish WA.O3 Water Systems, Inc. is now located in Cle Elum, WA. where our facility is dedicated to water treatment solutions manufacturing, warehousing and training.

We have Certified Water Specialist on staff to answer your questions. Contact us to talk to a Certified Water Specialist.

We know and understand the often complex water quality issues and believe every customer should get a treatment solution that will actually solve their water quality problems, make their lives simpler and enable them to actually enjoy their water. Whether you need a treatment solution for a single problem or a complex set of problems it is our goal to provide you with the water quality you expect and deserve. We have Certified Water Specialists on staff to answer your questions.

Where can you get your CASCADIAN® products?

All products are available through Professional Dealers only. If you have an existing system and are looking for parts or service please contact us and we will gladly help you find a Professional Dealer near you.

Cartridge based Integrated Cartridge Solutions (ICS); Our ICS systems are designed to provide flow rates to 35 gallons per minute, are smaller than automatic solutions, have no moving parts and do not require power, a waste water drain line or salt. ICS units provide a Simple, Effective and Eco-Friendly alternative to traditional treatment and can often be used to improve traditional treatment. Click here to learn more. Click here to learn more.

Cascadian Water Downloads

Summit -Cascadian - Model 58L Series - Automatic Softener Brochure

Pinnacle - Model 58X Series - Automatic Softener- Brochure

ArsenicTRAP - Model 58X - Automatic Arsenic Filter System- Brochure

Model SC 214 - Scale Control System Brochure

AcidFIX - Automatic Filters- Brochure