Topics

Aquifer® Water Filtration System

Filter Life

  • Replace the filter cartridges every 6 months, when the capacity has been exceeded, or when a noticeable decrease in water flow is observed.

Fluoride

  • Many water utilities add fluoride to their water for dental and skeletal health.
  • Aquifer filters do not remove fluoride.

Lead Reduction

  • Aquifer water filters are certified by NSF International to Standard NSF/ANSI 53 for the reduction of lead.
  • According to the standard, the maximum lead allowed through the filter is 0.010 mg/L.

Hexavalent Chromium Reduction

  • Aquifer filter cartridges do not reduce Hexavalent Chromium.

Select Pharmaceutical Removal

K-77687 and K-77688

  • These water filters have been tested and certified by IAPMO R&T against NSF/ANSI Standard 401 for the reduction of select pharmaceuticals.
  • Select pharmaceuticals include: Phenytoin, Ibuprofen, Naproxen, Estrone, Bisphenol A, and Nonylphenol.

Flow Rates

K-77687 (Single Cartridge)

  • The flow rate of the single cartridge is 0.85 gal/min (3.2 l/min).

K-77688 (Two Cartridges)

  • The flow rate of the cartridges is 1.7 gal/min (6.4 l/min).

K-20852 (Replacement Cartridge)

  • The flow rate of the replacement cartridge is 1.39 gal/min (5.3 l/min).

Micron Rating

  • The micron rating for a fluid filter indicates the ability of the filter to remove contaminants by the size of particles it is exposed to.
  • The K-77687 and K-77688 Aquifer water filters have a Class I Particulate rating, which corresponds to a 0.5 micron rating.
  • The Class I test measures the filter's retention of particles between 0.5 and 1 micron, with the NSF requirement being greater than 85% to be in compliance.
  • Both the K-77687 and K-77688 filters have tested to 99.9% or greater.

Cartridge Material

K-77687 and K-77688

  • Aquifer filter cartridges are made of coconut shell-based carbon.

Recycling Old K-77687 and K-77688 Cartridges

  • When you replace a filter cartridge, invert the cartridge and let it drain for 3 days.
  • After 3 days, shake the cartridge to remove as much residual water as possible.
  • Place the cartridge in a plastic bag provided for this purpose, and completely seal the plastic bag.
  • Take the cartridge to your nearest FedEx shipping location.
  • The cartridge contents will be used as concrete fill for road and other concrete structures. The plastic housing will be recycled.

Cartridge Compatibility

  • The K-77687 and K-77688 filter cartridges are NOT compatible with the K-200 Aquifer water filtration system.
  • Order replacement filter cartridge K-20852 for your K-200 Aquifer system. Cartridge number K-20852 has replaced the K-201 and K-202 cartridges.

Replacing the K-201 and K-202 Filters with the K-20852 Filter

Replace filter cartridges every 6 months, when the capacity has been exceeded, or when a noticeable decrease in water flow is observed.

  • Position a bucket, pan, or rag under the filtration system to catch residual water.
  • Rotate the installed cartridge as far to the left as possible, until it stops.

  • Verify that the tabs on the filtration head are aligned.
  • Remove the old cartridge from the filtration system.

  • Write the installation date on the label.
  • Remove and discard the cap from the new filter cartridge.
  • Verify that both O-rings are present and positioned correctly in the grooves.
  • Line up the filter cartridge with the filter head.
  • Press the filter cartridge upward, and use your hand to rotate it counterclockwise 90° to the locked position.

For more information about the Aquifer filtration system, visit kohler.com/filtration .

1014875-10-F  ©Kohler Co.

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