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Arsenic Filter
Whole House Arsenic Removal Water Filter 1-100ppb


  • Point of Entry Arsenic III & V Removal
  • Also Removes Lead, Cadmium, Copper, Chromium+6, Selenium, Fluoride, Zinc, Iron & Manganese. (For High Iron, Manganese or Sulfur, see Watermark Iron Filter)
  • Salt Free & Chemical Free, Auto-Backwash & Non-Electric Models


1-3 Bathrooms | Model ARF10

  • Flow Rate: 10gpm
  • 1" MNPT Inlet & Outlet, 1/2" Drain
  • Dimensions: H60" x W10.5" x D12"

3-5 Bathrooms | Model ARF15

  • Flow Rate: 15gpm
  • 1" MNPT Inlet & Outlet, 1/2" or 3/4" Drain
  • Dimensions: H60" x W12.5" x D14"


5-7 Bathrooms | Model ARF20

  • Flow Rate: 20gpm
  • 1" MNPT Inlet & Outlet, 3/4" Drain
  • Dimensions: H62" x W13.5" x D16"

Effective, healthy & trouble-free arsenic removal without the use of messy or dangerous chemicals.

    Premium Automatic Digital Valve | Built-In Battery Backup | Self Cleaning

    ARM35+METSORB media:

    This Patented highly effective granular adsorbent removes arsenic III & V, and a wide variety of heavy metals including Lead, Cadmium, Copper, Chromium+6, Selenium, Zinc, Iron, and manganese.

    The increased surface area afforded by ARM35+METSORB Titanium coupled with advanced pore volume provides excellent kinetics of adsorption.

    Maintaining a higher capacity and a lower level of ion interference. This media is long-lasting and upon exhaustion, has consistently tested nonhazardous for disposal classification. NSF Standard 61 approved, and has received regulatory approval from agencies across the United States and Canada.

    Chemical Free Regeneration Does not require chemicals such as chlorine dioxide, potassium permanganate, chlorine or sodium chloride brine solution for regeneration.

    Applications Ideal choice for point-of-entry systems & point of use.

    Expected Service Life Long service life of up to 6-10 years.

    Product water testing should be performed every 1-2 years to determine media change out.


    GRAVER-ALDEX NSF/ANSI 61 Certified.


    Contaminant Removal – Lab Data

    Test 1:  In-coming water spiked - 100ppb Arsenic III & V.
    • Third party testing found product water Arsenic level non-detected (0ppb).

    Test 2:  In-coming water spiked - 200ppb of Arsenic III & V.
    • Third party testing found product water Arsenic level non-detected (0ppb).

    Test 3:  In-coming water spiked - 500ppb of Arsenic III & V.
    • Third party testing found product water Arsenic level was 8ppb.


    About Arsenic

    Arsenic is a semi-metal element in the periodic table. It is odorless and tasteless. It enters drinking water supplies from natural deposits in the earth or from agricultural and industrial practices. Arsenic has been linked to cancer of the bladder, lungs, skin, kidneys, nasal passages, liver and prostate. Non-cancer effects can include thickening and discoloration of the skin, stomach pain, nausea, vomiting, diarrhea, numbness in hands and feet, partial paralysis and blindness (United States Environmental Protection Agency, 2015).

    On January 22, 2001, the EPA set the arsenic standard for drinking water at 0.01 mg/l or 10 parts per billion (ppb) to protect consumers served by public water systems from the effects of long-term, chronic exposure to arsenic. Water systems had to meet the new standard by January 23, 2006 (United States Environmental Protection Agency, 2022)


    Watermark Arsenic Filter Warranty

    Tank, Valve & Connectors= 10 Years

    Arsenic Removal Media= 2 Years or 100,000 gallons. Testing Should Be Every Year To Every 2 Years To Determine Media Change Out.


    Watermark Exceptionally Clean | Made in the USA

    Arsenic Filter

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