Replacement Filter Block

    Enjoy the confidence that comes with knowing your family is drinking the purest water. Our filters are customized based on water quality data to provide water that's not only clean, but tailored to suit your family's needs. Rely on our commitment to purity and safety, allowing you to drink fresh and healthy water, just as nature intended. This replacement cartridge is used in our under sink, counter top, and refrigerator/ice maker water filter units.

    One-time purchase

    $ 39.99

    Subscribe & Save

    Save 10%

    $ 35.99

    $ 39.99

    Initial shipment includes: Replacement Filter Block

    Next shipment: Includes 1 Counter Top Water Filter charged at $69.99 per month

    Available upgrades

    Counter Top Water Filter



    • Targeted Removal: Designed to filter out PFAS, Lead, Arsenic, and more.
    • Easy Replacement: Swap out in just a couple of minutes, no tools needed.
    • Trusted Purity: NSF Certified to ensure clean and safe drinking water.
    • Exceptional Support: Access to our dedicated team of Water Specialists.
    • Advanced Filtration: Removes 95% of chlorine and impurities, maintaining high-quality water standards.

    Advantages of Our Water Filter Replacement Filter Block

    Discover the technological marvels that sets the replacement cartridge apart, crafted to address your water purification needs with precision and care.

    Customized Filtration:

    Each filter is uniquely tailored to your local water profile, ensuring targeted removal of specific contaminants for optimal purification‚Äč‚Äč.

    Broad Spectrum Contaminant Removal:

    Expertly designed to eliminate a wide array of pollutants, including heavy metals and chemicals, safeguarding your water's purity‚Äč‚Äč.

    NSF Certification:

    Our filters are independently verified by the National Sanitation Foundation for exceptional contaminant reduction standards, guaranteeing performance and reliability‚Äč‚Äč.

    Extended Filter Life:

    Boasting a longer lifespan than standard filters, One Green Filter reduces the need for frequent replacements, offering both convenience and cost-effectiveness‚Äč‚Äč.

    Benefits of Our Replacement Cartridge

    Experience the transformative benefits of the replacement cartridge, enhancing not just your water, but your life.


    Elevated Water Quality

    Delivers remarkably clean and safe drinking water, free from unpleasant tastes and odors, enhancing your daily hydration and well-being‚Äč‚Äč.


    Personalized Solutions

    Our custom filtration approach means your filter is perfectly aligned with your specific water quality needs, providing highly efficient and effective purification‚Äč‚Äč.



    The longer lifespan of our filters translates into fewer replacements, saving you money over time, while also being easy to maintain‚Äč‚Äč.


    Assured Safety

    With NSF certification, you can trust that your water is being filtered to the highest standards, offering peace of mind with every glass‚Äč‚Äč.

    Frequently Asked Questions