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ICS-CTP35K Replacement Water Filter for ICS-CTP35 System


Treatment Included

P, PolyHalt 35, 35 gpm K, Replacement Kit


Light Commercial, High Flow

ICS-CTP35K - Replacement Filters - Cascadian Water

Product Details

This replacement cartridge filter kit for the Cascadian ICS-CTP35 treatment system is custom designed to soften all water, making it ideal for large homes, eateries, hotels, and agricultural applications. The ICS-CTP35K is specifically tailored for the ICS-CTP35 system.

    Rely on our expertise to deliver the simplest water treatment

    • 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, not questions asked

    • Filter Subscriptions

      Purchase your first replacement filters after a year with your system and select the subscription option to save time and 10% off.

      Filter Subscription
    • Product Specification

      Each product has specific capabilities and unfortunately can't treat every type of water. Find details on the specification.



    Where does ICS 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.

    Does this include housing o-rings?

    No, the replacement kits do not come with o-rings.

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