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Cypress Water HF-31
Filter Replacement

Excluded from Sale or Coupon Offers


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    Not available for shipment to Canada
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    Ships for free to contiguous US and Canada
Item #HF-31

Full Features

Water Quality Association certification
  • holds WQA certification when used with the Cypress Countertop Water Filtration System
  • Gold Seal certified for trusted performance
  • certified under NSF/ANSI standards 42, 53, and 372*
  • see Performance Data Sheet for full list of contaminants reduced
Advanced 3-stage filtration system
  • composite-plus filter helps catch sand, rust, and fine particles
  • patented nanotrap filter decreases waterborne microorganisms, including many bacteria and viruses
  • carbon block filter reduces particulates, bad tastes and odors, contaminants like chlorine, and volatile organic chemicals (VOCs)
Crystal clear benefits
  • quick-connect for easy filter installation
  • replace composite plus and carbon block filters every 6 months, and nanotrap filter every 12 months

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Composite Plus (HF-31): 6 months
Model Number/SKU
Composite Plus (HF-31)
Certifications & Notices
  • WQA

*See performance data sheet for more details. Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.