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KX Matrikx CTO 10" BB Carbon Filter #32-450-10-MATRIKX | Free Ship

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10" Big Blue KX Matrikx CTO Carbon Block Filter Part #32-450-10-MATRIKX

This Genuine KX Matrikx CTO carbon block water filter removes chemicals and odor from your water while improving the taste for your family. Fits all 10" BIG BLUE water filter housings for whole house water filtration. Can be installed either end up which makes it much easier to install for the "Do it Yourselfer". 100% compatible with numerous water filter housings. Filter is 4 1/2" by 9 3/4" in size.

✔️ REDUCES CHLORINE by 36,000 gallons for long filter life


✔️ REVERSIBLE DESIGN for quick and easy installation

✔️️ REDUCES SAND, RUST and SEDIMENT with 5 Micron Filtration



✔️ 100% COCONUT SHELL CARBON quality carbon block filtration

    *Great News!  You can Mix & Match ALL Water Filters & Accessories to take Advantage of our Quantity Breaks Pricing!

    Product Number  SMF 32-450-10-MATRIKX


    All products include FREE standard shipping in Canada!

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    Customer Reviews

    Based on 4 reviews
    Neil M. (Gravenhurst, CA)

    Can’t go higher as I have not utilized the filters as yet. Ask me in a year.

    Thank you for your business, Neil!
    We look forward to helping you again soon.
    Take care and stay safe.

    Stephen B. (Toronto, CA)
    Support small business

    Fast service, knowlegeable team, great support

    Michael S.A. (Winchester, CA)
    Our source of supplies for our home water filtration system

    We have been using the Water e-store for close to 5 years now. They have been very helpful in assisting us to make educated buying decisions for our softener and RO filtration systems. Gary's videos are an immense aid and email questions are promptly returned. Delivery of items are timely and arrive well packaged.

    Stephen B. (Kingston, CA)
    Great product, reliable provider

    Best water filter cartirdge to date, system installled in 2017; filters are replaced quarterly, canister always full of discoloured water. Never experience chlorine odour or taste.

    About KX Matrix

    The MATRIKX® brand is famous for activated carbon blocks since 1996.  More recently, it also removes chloramine across its product line.  MATRIKX features the WQA Sustainability Certification Program which certifies its products are manufactured via industry best practices for corporate social responsibility and environmental sustainability – all at a competitive price! 

    Water eStore carries MATRIKX products for various applications.  We Chlorine, Chloramine, Lead, VOC, Cyst, Taste and Oder versions available in both 10” and 20” lengths as we as slim line (2 ½”) diameters and Big Blue (4 ½”) diameters. We carry all 4 versions of Matrikx carbon filters including Matrikx CTO, Matrikx CTO Plus, Matrikx Pb1, and Matrikx Chloraguard. We vet our suppliers and personally test all MATRIKX products, installing them in our homes (where applicable) and monitoring their performance daily. They have earned their reputation as innovative products with top notch customer service.  

    MATRIKX products are easy to install and service. We offer YouTube videos that support MATRIKX products explaining how they work, how to install and service. We also offer a 100% money back guarantee if you’re not satisfied with your investment in MATRIKX products for your family.

    See all from KX Matrix

    Shipping Policy

    We offer FREE Shipping anywhere in Canada. Once your order is placed, we process it the next business day and ship via ground transportation. In very remote locations, whenever the shipping costs become prohibitive we reserve the right to either cancel the order or ask that you contribute to the shipping costs, it's up to you. Your items may take anywhere from a few days up to a few weeks to arrive.

    If you have any special shipping requirements, like requiring a signature at time of delivery, please leave a message in the "Special instructions for seller" section while checking out. If you order multiple products they may not all arrive at the same time as we ship from multiple warehouses and each item will be shipped directly to you. If no one is home when your order is delivered it will be left for you but we cannot assume responsibility for your order once it has been dropped off.

    If you have any questions please contact us at

    Thank you for your order, we appreciate your business!


    Excluded Items

    We do not offer refunds or returns on items built to order including Aclarus Ozone systems, Reverse Osmosis systems larger than 500 gpd or water softeners/iron filters over 1 cubic foot. 


    Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.

    To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

    To complete your return, we require a receipt or proof of purchase.

    Please do not send your purchase back to the manufacturer.


    Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

    If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

    Late or missing refunds

    • If you haven’t received a refund yet, first check your bank account again.
    • Then contact your credit card company, it may take some time before your refund is officially posted.
    • Next contact your bank. There is often some processing time before a refund is posted.
    • If you’ve done all of this and you still have not received your refund yet, please contact us at

    Sale items

    Only regular priced items may be refunded, unfortunately, sale items cannot be refunded.


    We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to: The Water Store 1004 King Street Midland Ontario CA L4R0B8.


    To return your product, you should mail your product to:

    The Water Store
    1004 King Street
    Midland Ontario CA L4R0B8

    You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

    Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

    If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

    Still Got Questions?

    Not to worry, we're here to help. Let us know what questions you have about KX Matrikx CTO 10" BB Carbon Filter #32-450-10-MATRIKX | Free Ship and one of our experts will get back to you shortly.