ICS-SIP PolyHalt® Water Softener with Sediment/Iron Filter

Cascadian Water  |  SKU: ICS-SIP
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Routine Maintenance Kit

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The ICS-SIP system filters sediment, Iron and softens

Uses the ICS-SIPK replacement kit

The ICS-SIP does this for you:

  • Solves your water problems effectively and efficiently
  • Pays for itself by saving you time, money and work
  • Simplifies your life while making your water and home more enjoyable
  • Frees you up - do more of what you enjoy more often 


Three high performance treatments - one small wall mounted system.
It is a very efficient 3 stage high flow cartridge based treatment system is designed to remove sediment, iron and manganese and soften and condition all the water for every use in your whole home or business. It is an excellent choice for well water. 
  • First treatment is a multimicron depth sediment filter to protect and clarify
  • Second treatment is an iron and manganese filter to stop orange/red and brown/black stains
    • Third treatment is PolyHalt® salt free softener and water conditioner

    Other Specs

    Filter Size: 4.5" x 20"

    Connection: 1" FNPT

    Treatment Included: S, Sediment I, Iron P, PolyHalt

    • 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

    Customer Reviews

    Based on 15 reviews
    Rick Z (Seattle, US)
    Cascadian Water Filters are AWESOME

    From the photos it is pretty obvious why we need filters -- high iron and manganese content from the well that serves our association. The Cascadian Water filters continue to do an outstanding job. The system and its filters have been a great investment.

    Hi Rick,

    Wow, those photos really do speak for themselves! We're incredibly grateful for your kind words and 5-star review of our ICS-SIPK filter. It's clear that our system is working hard to remove the iron and manganese from your association's well water, and we're thrilled to hear it's been a great investment for you all.

    Thank you for sharing your experience and for the fantastic visual proof of how effective our filters are. We appreciate your continued trust in Cascadian Water!

    James Urion (Arlee, US)
    Cascadian makes the process easy!

    This year Cascadian have updated their subscription program. Because the timing of this update was precisely when our subscription was due to shipped, we wound up with two sets of filters arriving a day apart. The process to send one back was handled adroitly by Cascadian and could not have been easier. Thank you, Cascadian, for such a fine job.

    Hi James, Your 5-star review made our day! We're incredibly grateful for your kind words about our new subscription program and the ease of managing your filter replacements. We understand receiving duplicate filters might be inconvenient, so we're thrilled to hear your experience of returning one was smooth and hassle-free. That's exactly what we strive for in our customer service. Thank you for taking the time to share your positive feedback. It means a lot to our team! We're continuously improving our subscription program to offer the best possible experience, and your input is valuable.

    Rick Z (Seattle, US)
    Outstanding Filters

    We have been using the ICS-SIPK fllters for several years. Exceptional performance with the heavy iron and manganese concentrations in the local water. Great product -- highly recommended :-)

    ## Thank you for your kind words, Rick!

    We are thrilled to hear you've been enjoying the exceptional performance of the ICS-SIPK filters for several years. Your feedback is incredibly valuable to us and helps us continue to provide high-quality water treatment solutions for homes with challenging water conditions.

    We are especially pleased to hear that the filters have been effective in removing the heavy iron and manganese concentrations in your local water. This highlights the unique capabilities of the PolyHalt® technology used in our filters, which effectively tackles these common water problems without the need for salt or harsh chemicals.

    We are grateful for your recommendation and ongoing support. We are committed to providing you and other customers with outstanding water treatment solutions that enhance your home and well-being.

    Sincerely, The Cascadian Water Team