Housing Wrench for 2nd Generation POU ICS Systems

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Housing Wrench for 2nd Generation POU Systems

AF-WRENCH25 Replacement filter housing wrench for 2nd generation Small / Point of Use ICS systems sold from October 2019 including:


Will not fit 1st generation POU treatment systems. 

Small / POU 2nd generation systems that use this wrench look like the one shown below.

Please check that the overall length of your system is less than 15 inches.


  • Eco Friendly

    No Water Waste

  • Legal Everywhere

    Our filters can be used where salt softeners are banned

  • Easy Maintenance

    Change filters once or more per year

  • 60 Day Guarantee

    Return it, no questions asked

Frequently Asked Questions

Where does the ICS system go in my home?

Where it can fit, and where it can easily get access to your home's water source. This is typically a garage, crawlspace, or even a closet. If you have questions a plumber would be able to help you find the best spot. During maintenance you'll need to fit a bucket and have enough space to turn the sump wrench which comes with your system

How often do I replace the filters?

Most people replace their filters once per year, or sooner if they start seeing issues with their water again. Learn about water issues here

What is the return policy?

If you are unsatisfied within 60 days of purchase, return the housing and we'll refund your purchase no questions asked.

How fast do you ship?

We typically ship same business day if the order is placed before 2 pm PST using UPS ground.

Rely on our expertise to deliver the simplest water treatment