Preferred Customer Plan

Free Shipping!

We continually look for ways to keep costs down for our customers.  Join our Preferred Customer Plan for these great benefits:

  • All of your replacement cartridge for 5 33%, no price increases, no shipping costs.
  • Unconditional guarantee! We pay all costs including shipping for anything that goes wrong with your unit for the 5 years of the questions asked. Available to preferred customers only.
  • Receive reminders each year to let you know when and how to change and rotate filters.
  • You receive $50 for every friend that purchases a Lakota Scientific Water Filter as our way of saying "thank you" for being a preferred customer.