Water Doctor

Water Doctor 4.5 x 10 Replacement Filter Cartridges – PP / PS / PL / CTO / GAC

Regular price $17.99 CAD
SKU: PP-10B05M
Versatile filter options for your 4.5” x 10” Water Doctor system.This page offers a full range of 4.5 x 10 inch replacement filter cartridges designed to fit Water Doctor WF-10B,...

In stock and ready to ship

Model: PP 4.5 x 10
Water Doctor 4.5 x 10 Replacement Filter Cartridges – PP / PS / PL / CTO / GAC
$17.99 CAD
PP 4.5 x 10

Before you reorder

Match the cartridge, lamp, or filter stage to your existing system before checkout so you do not end up with the wrong replacement part.

Still deciding between replacing a part and solving a broader water problem? Start here first.

Water Diagnosis Check Water Hardness If you are actually solving a new water problem, confirm the diagnosis before reordering parts. Guided Selection Help Me Choose Use the guided path if you are not sure a replacement purchase is the right next move.
Estimated delivery: May 26 - May 30
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Versatile filter options for your 4.5” x 10” Water Doctor system.
This page offers a full range of 4.5 x 10 inch replacement filter cartridges designed to fit Water Doctor WF-10B, WF-10BC, and other compatible 4.5"x10" standard housings. Whether you're filtering sediment, chlorine, taste, or odor — we’ve got you covered.

Available Filter Types:

  • PP Sediment Filter (Polypropylene)
    ➤ Captures large particles like sand, rust, and dirt
    ➤ Ideal as a first-stage filter
    Recommended replacement: Every 6 months
  • PS Spun Sediment Filter
    ➤ Depth filtration with graded density
    ➤ Better dirt holding capacity
    Recommended replacement: Every 6 months
  • PL Pleated Sediment Filter
    ➤ Washable & reusable
    ➤ High flow rate & dirt holding capacity
    Recommended replacement: Every 6–12 months
  • CTO Carbon Block Filter
    ➤ Removes chlorine, chemicals, and improves taste/odor
    Recommended replacement: Every 6–12 months
  • GAC Granular Activated Carbon Filter
    ➤ Targets chlorine, taste, and organic chemicals
    ➤ Great for high flow applications
    Recommended replacement: Every 6–12 months

Compatible Housing Models:

  • Water Doctor WF-10B

  • Water Doctor WF-10BC

  • All standard 4.5” x 10” filter housings

All filters made with food-grade materials and high-quality media to ensure safe, clean, and great-tasting water.

  • Free Assessment

    Confirm fit before you order the wrong system or replacement part.

  • Installation Planning

    Talk to Water Doctor about setup, compatibility, and service expectations.

  • Shipping and Support

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  • Replacement Ready

    Keep maintenance, filters, and UV lamp replacements simple over time.

    Buy with more confidence

    Water Doctor is strongest when product, installation, and maintenance are treated as one system.

    • Confirm the Right Fit

      Match this product to your water problem, household size, and plumbing setup before checkout.

    • Plan Installation

      Check access, service area, and installation timing so there are no surprises after purchase.

    • Think About Maintenance

      Replacement filters, UV lamps, and long-term care should be part of the buying decision from day one.

    Before you order

    Need help confirming fit, installation, or maintenance?

    Water Doctor can help you verify whether this product matches your water problem, installation setup, and replacement schedule before checkout.

    After purchase support

    Keep performance high with the right replacement and service plan.

    Water treatment performance depends on timely maintenance. Save your model details, set replacement reminders, and use Water Doctor support when unsure about cartridges, UV lamps, or service intervals.

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