OptiPure CTO-Q10 Replacement Cartridge

Product Code


3 lbs
15 in
4 in
4 in


The CTO-Q10 is a replacement cartridge for the following water filtration systems: SRO70, OP70, OP175, and BWS100. It is a 10” Quick-Twist filter cartridge that reduces sediment (down to 0.5 microns), chlorine, and other contaminants that affect the taste and odor of your water at a flow rate of 1.5 gallons per minute for 15,000 gallons. The CTO-Q10 is used for both pre- and post-filtration, helping to reduce the pressure that is put on the membrane, the semi-permeable barrier that allows only specific solids and other substances to pass through. As a post-filtration cartridge, it assists the membrane by catching particles that the membrane might miss.


  • Replacement cartridge for OptiPure SRO70, OP70, OP175, and BWS100 systems
  • Easy to install Quick-Twist cartridge
  • Reduces sediment, chlorine, taste, and odor
  • Functions at a flow rate of 1.5 gallons per minute for 15,000 gallons
3 stars, based on 1 reviews

Verified Reviewer

2/6/2020 3:28:44 PM

3 / 5 stars

Does not last long

It does a good job except that it clogs up super fast. Lasts about a month for me which is painful given the expense of a replacement. We are on town water. I’m thinking of installing a cheaper pre-filter to try to help get some more life out of this one. Just wish it would be capable of more given the expense.

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