• Water Doctor COMO-R700 PCB replacement filter cartridge
  • Water Doctor COMO-R700 RO replacement filter cartridge
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Water Doctor

Water Doctor COMO-R700 Replacement Filter Cartridges – PCB / RO

$89.99 CAD
SKU: CM-R700PCB
Genuine replacement cartridges for the COMO-R700 tankless RO systemThese Water Doctor COMO-R700 Replacement Filter Cartridges are designed for the COMO-R700 tankless reverse osmosis system. Choose the PCB cartridge or RO...

In stock and ready to ship

Model: PCB
Water Doctor COMO-R700 PCB replacement filter cartridge
$89.99 CAD
PCB

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.

Verify Replacement Match Book System Check

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: Jun 26 - Jun 30
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Genuine replacement cartridges for the COMO-R700 tankless RO system

These Water Doctor COMO-R700 Replacement Filter Cartridges are designed for the COMO-R700 tankless reverse osmosis system. Choose the PCB cartridge or RO cartridge based on your system’s maintenance needs.

Compatible system

  • Water Doctor COMO-R700 Tankless RO System

Available cartridges

  • PCB cartridge for pre-filtration and carbon filtration before the RO stage
  • RO cartridge for the reverse osmosis stage

Best for

  • Customers replacing filters in an existing COMO-R700 system
  • Maintaining daily flow and drinking water taste
  • Keeping the tankless RO system on schedule

Maintenance note

Replacement timing depends on source water conditions, household usage and system indicators. Use genuine Water Doctor COMO-R700 cartridges for proper fit.

Before ordering

Please confirm your system model is COMO-R700 before purchasing. These cartridges are not interchangeable with COMO-R1000 or GF3 filters.
  • Water Doctor COMO-R700 PCB replacement filter cartridge
  • Water Doctor COMO-R700 RO replacement filter cartridge
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    • Think About Maintenance

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    Before you order

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    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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