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Pentair CTOS-10 Replacement Cartridge

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About the Product

Pentair Authorized Distributor Announcement

Coffee Machine Depot USA is excited to offer the Pentair CTOS-10 Replacement Cartridge, a leading solution in water filtration for coffee machines, ice machines, and steam equipment. Engineered for excellence, the CTOS-10 is a 10-inch drop-in cartridge designed to significantly enhance water quality by reducing sediment to 0.5 microns and diminishing chlorine, taste, and odor. Operating at a flow rate of 1.5 gallons per minute, it effectively treats up to 15,000 gallons of water. This cartridge incorporates IsoNet®, OptiPure’s exclusive scale-inhibiting technology, ensuring consistent scale and corrosion protection.

System Benefits:

  • IsoNet Technology: Provides robust protection against scale and corrosion, enhancing equipment longevity.
  • Reduces Maintenance Costs: Lowers the frequency of maintenance and extends the lifespan of your equipment.
  • Advanced Filtration: Employs gradient-density depth filtration to remove dirt, rust, and debris, ensuring clean, clear water.
  • Activated Carbon Filtration: Improves water taste and safeguards against corrosive chlorine.
  • High-Capacity Cartridge: Decreases maintenance needs by extending the filter system's life.
  • Efficiency and Sustainability: Enhances operating efficiency by minimizing scale and corrosion, and reduces waste by only replacing the drop-in cartridge.
  • Cost-Effective: Offers a lower cost per gallon compared to proprietary quick-change filters.
  • NSF Certified: Meets Standard 42 as a replacement cartridge in OptiPure FXI Series Systems.

Ideal Applications:

Suitable for use with ice machines, coffee brewers, and steam equipment. It is compatible as a drop-in style cartridge for the OptiPure FXI System and can be retrofitted into most standard 10” drop-in style housings.

Installation Tips:

  • Verify the cartridge is the correct replacement.
  • Adhere to specified temperature and pressure limits.
  • Ensure at least 3 inches of clearance below the system for easy filter housing removal and cartridge replacement.
  • No activation or flushing is needed for optimal performance.
  • Only connect to cold feed-water.


  • Dimensions: 9.8”H x 2.8”W x 2.8”D
  • Operating Pressure Range: 10 - 125 psi
  • Inlet Water Temperature Range: 35˚ - 100˚F
  • Chlorine, Taste, and Odor Reduction: Up to 15,000 gallons
  • Service Flow Rate: 1.5 gpm
  • Sediment Reduction: 0.5 microns
  • Scale & Corrosion Inhibitor: IsoNet (70 grams)

System Cartridge Compatibility:

  • FXI-11: Part Number 160-50105
  • FXI-21: Part Number 160-50015

Maintenance Tips:

  • Change pre/post-filters and mineral addition cartridges every 6 months, upon reaching capacity, or if water pressure or flow decreases.
  • Membrane lifespan varies based on feedwater conditions and can range from 12-18 months to 3-5 years.
  • This commercial-grade product should be installed and maintained as per the manufacturer’s guidelines and is not intended for use with water of unknown quality without proper disinfection.

This comprehensive offering underscores our commitment to providing high-quality water filtration solutions that enhance the performance and longevity of your equipment.


Warning: Proposition 65 Warning — Applies to the State of California Only. LEARN MORE >

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