Filter - Best Under Sink Reverse Osmosis System

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  • Membrane Solutions®
  • C1 filter is used to filter tiny sediment particles, and reduce unwanted taste, smell, and chlorine in tap water, it’s a necessary part of the under sink reverse osmosis system. And removes heavy metals, absorbs residual chlorine, bad taste, and odor, and improves water taste, it can be replaced by a PP filter, which adapts an advanced pp membrane.

  • It usually costs 3-5 business days to deliver your package by FedEx, UPS, and USPS.

    For retail online purchase, now we offer shippment to United States and Canada. But for business purchase, can ship internationally. For business purchase, you can go to our business purchase page and send us inquires or send us the email via


    • Replaced in seconds
      Membrane Solutions' Switch-and-Lock design, allows you to switch on & off the filter in a few seconds, no need to disassemble the whole system.
    • Long last lifetime
      According to your water quality, this purifier can last about 6 months, no need to wash, simply throw it away when it finished its lifetime
    • Other Features
      Dual-purpose filter cartridges filter fine sediment particles and reduce unwanted taste, odour and chlorine in tap water.

      Fits all 10" (~25.4cm) standard filter housings and replaces 10" (~25.4cm) x 2.5" (~6.4cm) carbon cartridges.

      Economical water filtration solution for residential chlorinated water supplies Tested by NSF International and certified to NSF/ANSI Standard 42 for peace of mind 5000 gallon capacity. Replace every 6 months or when you notice a change in water pressure or quality.
    C1 Filter