Matrikx 4 Stage RO (no DI) Replacement Filter Kit

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Matrikx 4 Stage RO (no DI) Replacement Filter Kit

100% Recommend this to a friend (42 of 42)

SKU: 200101

reg. $21.99

Special Price: $18.69

In Stock: 977
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Quick Overview

This kit works with all BRS 4 Stage RO Only Systems along with most other RO systems that use 10" canisters.

This kit includes:

  • Purtrex 5 Micron Sediment Filter

  • MATRIKX CTO 5 Micron Carbon Block

  • MATRIKX CTO 1 Micron Carbon Block

We recommend changing sediment filters when they become visually dirty or there is a noticeable drop in pressure. Change carbon blocks every 6-12 months depending on use. This kit does not include a membrane filter as they need replacement every three years or so, depending on water and set up.


Full Details

Recommended Installation for this package*

  • Stage One - Purtrex 5 Micron Sediment Filter
  • Stage Two - MATRIKX CTO 5 Micron Carbon Block
  • Stage Three - MATRIKX CTO 1 Micron Carbon Block

Our filter kits feature some of the most widely used and trusted brands in the world including GE, KX Technologies and Pentek. The 10” filter size is the industry standard and will fit our systems as well as virtually every brand of RO system that uses similar looking carbon blocks.  Most of the filters included in our kits are NSF Certified or WQA Gold Seal Certified and Manufactured using FDA-compliant materials.

*This is our recommended filter arrangement and we have found to be the best combination for the most common installations and water conditions. If you have something unique about your water supply or installation please contact customer service and one of our WQA certified water specialists will be able to assist you. Our onsite chat feature is the quickest way to receive advice but we are available to assist via the phone and email as well.


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  • So far so good By Reefer250 on 1/19/2017

    I am new to ro/di just started making water and I have to say these filters are good and easy to change out
  • Quality By Cory on 3/16/2016

    These are the only filters I use!
  • Great Product By KEM on 11/14/2014

    These replacements filters are fantastic. Long life and help keep the TDMS at 0.
  • 4 stage replacement ( no di ) filter kit By Gary on 9/18/2014

    Great product and excellent customer service. I've used other filters but decided to try a different kind ( type ) so I called customer service and they discussed my options so I figured I'd give them a try. I was amazed at the quality of the filters. I have well water and have high tds but after installing these they dropped it better than any others I've tried. So I'll be purchasing more in the future and highly recommend this product to everyone.
  • Great filters! By Michael on 9/2/2014

    Until I got these filters, I did not realize how poorly my cheaper knockoff filters were performing. After installing these filters, my TDS dropped dramatically and there was a significant improvement in the taste of the water. Thanks BRS!
  • Perfect By MMM923 on 6/24/2014

    I have the 4 stage Value Plus - purchased it back in November during their black friday sales. My old RO/DI unit was doing its job but i wanted something cleaner looking and just newer. The BRS replacement filters are awesome. First of all, anytime i replace my filters I like to back flow for 15-20 minutes - not only to rinse out any loose particles but to make sure everything is set properly. I dont think at any point did i see water that wasnt clear. This has not been the case with other replacement filters I have used. If you have the 4stage you will get an extra filter with this kit. You will get a sediment, 5 micron and .06 micron. Called BRS and you can use either the 5 or the .06. To me this is great because its always nice to have an extra on hand and at the price how can you beat it? OK maybe going to ebay and buying something that might not be what you think it is... not for my tank - might go cheap in other areas but when it comes to several fish and coral that pass the $100 "per" mark 20-25 bucks every few months for new quality RO/DI filters is a no brainer.
  • BEST FILTER KIT AVAILABLE!!! By Pegasus on 6/24/2014

    This kit has high-capacity sediment, 5 micron carbon, and .6 micron carbon filters. MUCH better than the standard filters that came with my cheapo RO/DI kit. After a year of use and two complete filter changes, my RO membrane was putting out 10 ppm TDS. Membrane cartridge was filthy! Cheap filters killed the membrane! This kit will make my new membrane last much longer. Very highly recommended if you filter lots of water... especially for reef tanks.
  • Great By David on 4/30/2014

    Good price. Work great. Just as advertised.
  • Great Product Great Price! By Charles on 3/2/2014

    Great deal and changing regularly helps save the membrane.
  • Great buy By Lma on 1/31/2014

    Great buy.
  • Works great. By Red7Xero on 1/21/2014

    I bought this with the canister including the DI. So far so good.
    Thanks again BRS.
  • Worth the Purchase By Cody on 11/8/2013

    Keeping your TDS at zero is a must! These replacement filters did just the job for me and are keeping my tank clean and healthy!


Ask a question

Product Questions

Any reason not to swap out the 5 micron sediment filter for the 1 micron sediment filter? Would it degrade performance or reduce pressure?
Question by: Luke on Dec 19, 2015 9:03:00 PM
Great question!
You can certainly change the filters to the newer version BRS 1 Micron Universal instead for better coverage of chloramines. This will not have a negative impact on filter life or pressure. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 6, 2016 12:39:00 PM