The FLEX4V whole home water filtration system.  The first product being released in the FLEX Series product line.  A unique, modular system that can be scaled to meet the water needs of any environment.  An investment in a FLEX system is never lost. 


As your family grows or your water filtration requirements change, your system grows and changes with you.  No need to replace a system; simply grow the FLEX system with an additional FLEX unit.  Adjust filtration needs by changing out filters to best meet your water needs.  A truly flexible, adaptable, scalable, configurable and dependable system.



QWS is launching the release of the FLEX4V Whole-House Water Filtration System to homes in Southeastern Wisconsin. 

Initial units can be purchased at a discounted price during our product introduction period.

Enrollment is now open and QWS is actively reviewing program requests.

Our QWS Sales team is ready to assist you with any of your questions and provide you any support necessary.  If you are looking to obtain a FLEX unit for yourself, make a referral or simply want to know more about the product line, please feel free to contact our sales staff.

QWS - Qualified Water Systems, is a member of Alligator Holdings LLC, a growing group of companies focused on bringing innovational products to market through advanced manufacturing processes.


Qualified Water Systems
N22 W22922 Nancy’s Court
Waukesha, Wisconsin  53186  USA


Alligator Holdings

W229 N1433 Westwood Drive, Suite 210, Waukesha, Wisconsin 53186, USA


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