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Home > Replacement Water Filters > Filters for 20 inch Big Blue Housings

Intelifil (FI-AA020BHF) 20"x4.5" 23,000 mg/L Activated Alumina Fluoride Removal Filter

Intelifil (FI-AA020BHF) 20"x4.5" 23,000 mg/L Activated Alumina Fluoride Removal Filter


Your Price: $147.33


Availability: Ships within 24-72 hours

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Quantity Discounts
Quantity Price
2 $123.76
3 - 5 $116.39
6+ $109.02


Highly Fluorinated water may be dangerous to your health. Drinking water with fluoride levels above 2 mg/L can lead to mottling of the teeth. Ongoing levels above 4 mg/L can result in serious health problems.

Although the main purpose of this filter is to remove fluoride, Activated Alumina can remove many other contaminants.


  • Fluoride
  • Hydrogen Chloride
  • Hydrogen Sulfide
  • Carbonyl Sulfide
  • Carbon Dioxide
  • Inorganic Arsenic
  • Alcohols
  • Ethers


  • Micron Rating: 10 microns
  • Dimensions: 20" x 4.5"
  • Design Flow Rate: .5 GPM
  • Weight: 8 lbs 8 oz
  • Operation Temperature: 40°F to 100°F
  • Filter Media: Activated Alumina
  • Filter Life: 23,000 mg/L or 1345 GPG

Operating Conditions:

For maximum effectiveness, do not exceed the recommended flow rate of .5 GPM. This filter lasts for 23,000 mg/l (ppm) with effluent levels below 0.2 ppm from 10 ppm feed (approximately 5750 gallons). Note: high pH and high bicarbonate levels reduce the capacity - above 100 ppm bicarbonate, reduce by 50%; above 200 ppm, reduce by 75%.

Interfering ions and the recommended flow rates must be specifically accounted for when sizing these cartridges.

Intelifil Model#: IF-SM-AA020B