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ICS-S5 High Capacity Multimicron Sediment Filter


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Treatment Included

S, Sediment 5, 5 micron

Suitable For

Whole House



Filter Size

4.5" x 20"

ICS-S5 - Complete Treatment System - Cascadian Water
ICS-S5 - Complete Treatment System - Cascadian Water

Product Details

The ICS-S5 system is an advanced high loading capacity sediment and particulate filter.

The ICS-S5 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


High performance treatment in a small wall mounted system.
Cartridge based water treatment system is engineered to produce high quality water for every use in home or business. It is an excellent choice for city or well water. 
  • A multimicron depth sediment filter to clarify your water by removing particles down to 5 micron (smaller than the human eye can see)
  • Protects downstream treatment process, fixtures and appliances
    • Does not waste water - no water running to drain, doesn't make any noise 
    • Does not require power

        • 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

        Cascadian Water ICS Softener installed in electrical room
        Cascadian Water ICS Systems installed
        Installation of Cascadian Water ICS PolyHalt Softener
        Installation of Cascadian Water ICS PolyHalt Softener

        Small Size Means Flexible Install

        Don't sacrifice precious garage space. The whole house filters from Cascadian are much smaller, and take up no floor space.

        Learn about install options


        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.

        • 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.

        • Manual and Instructions

          Find a printable manual for this product or installation instructions

          manual pdf

        It's important to note that products featuring PolyHalt® - identifiable by a 'P' in the part number - may be damaged by contaminants such as hydrogen sulfide or tannins. To ensure optimal performance of PolyHalt®, these contaminants must be adequately removed from the water.

        Our ICS-H product offers a suitable option for pretreatment for hydrogen sulfide. Utilizing ICS-H will aid in eliminating these harmful substances, thereby preserving the efficiency and extending the lifespan of your PolyHalt® products. Always remember to pre-treat your water with ICS-H when necessary to ensure the best performance and durability of your PolyHalt® system.

        Customer Reviews

        Based on 3 reviews
        Dee Breason (Salt Lake City, US)
        Well Water Winner

        This filter makes my water taste like a winner. No funky aftertaste. Water in the purest form.

        Thank you Dee, we really love to hear your story.

        Gary Johnston (Seattle, US)
        Up graded

        Had well people doing work and installed the filter, they took out the old corrugated one and we’re pleased when they saw the new one as an upgrade

        Hi Gary, the S5K is a huge upgrade to your old filter! You will be amazed when you see what it traps and removes. Thanks for the review.

        Monroe Johnson (Kennewick, US)

        I just ordered the filter, did not install it

        Hi Monroe, thanks for the 5 Star review.