Microns and Water filters


What does the micron rating mean on a water filter cartridge?

A micron is one millionth of a meter or about 0.0000393 inches. The average

5 micro filter

Item number 33-036

thickness of a human hair is 100 microns. A filter cartridge with a 5 micron rating will remove all particles 5 microns or larger from the water. Five microns would be 0.0001965 inches in diameter. A 20 micron filter will filter particles of 0.0007864 inches or larger while allowing smaller particles to pass. For particles of rust, sand or dirt that are easy to see, a 10 or 20 micron filter would be appropriate. For very fine particles, choose the 5 micron filter. Use of a small micron filter when large particles are present will shorten the life of the cartridge.

Other valuable information can be found at the links below:

“A grain of sand is anywhere from 75 to 150 microns, so a 50 micron water filter should be good enough to handle your sediment issue.” – blog.waterfilters.net (3 of 10 posts about water filteration)
“Turbidity is a measure of the cloudiness of water, often the result of suspended
mud or organic matter, and may sometimes indicate that the water is contaminated with Cryptosporidium or other pathogens.” – heartspring.net
“We’re all made of more than 70% water. As our exposure to environmental pollutants increases, so does our need for filtered, healthy water. Your tap and bottled water can contain pollutants … “ – waterfiltercomparsions.com

We carry many of the common filter supplies on our web site.

Check out our web site entries.


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