ICS-HK Replacement Water Filter for ICS-H System

Cascadian Water  |  SKU: ICS-HK
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ICS-HK cartridge filter replacement kit

The ICS-HK cartridge filter replacement kit is designed specifically for the Cascadian ICS-H filter system and engineered to improve hydrogen sulfide (rotten egg) taste and odor problems from all the water for every use in your whole home or business. It is an excellent choice for well water.

All of our Filter Replacement Kits also include replacement timer fridge magnet and silicone lubricant.

  • Reduces and often completely eliminates foul smelling H2S (rotten egg) odors
  • An excellent pretreatment for any of our other systems when H2S exists in well water

For the best treatment we recommend following the ICS-HK with the ICS-STPK


  • 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