20 Inch Three Stage Whole House Water Filtration System

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Effective whole house, point of entry (POE) water filtration for contaminate-free showers and drinking water.

Studies show that our drinking and bathing water is filled with chemicals and other contaminates in many parts of the country.  We shower in chlorine and microorganisms.  Chemicals used to kill bacteria in fact have their own negative side effects.  This simple three stage filter system is designed to remove up 99.9% of all known toxins such as chlorine, heavy metals, pesticides, nitrates and chloramines.  It will purify up to 200,000 gallons of water per year.

How do I use the three stage water filter system?

Simply install the system on your incoming water line (before the hot water heater) and enjoy the benefits of ultra clean water in your whole house.  You will:

  • Enjoy cleaner showers and baths
  • Enjoy better tasting coffee, tea, juice and water
  • Clean your fruits and vegetables without adding contaminates
  • Provide safe drinking and bathing water for your family

This three stage system includes three 20" x 4.5" filter housings and a spanner wrench and three stainless steel brackets (pipe adapters not included). 

What kind of filters does the system use?

This system uses a 25 micron sediment filter, then a KDF/GAC filter and finally a carbon block filter.


  • Each 20" Big Blue housing is 7 1/2" diameter x 22" height
  • Each filter cartridge contains approx 6 lbs of carbon
  • Water flow:  10-20 gpm
  • up to 200,000 gallons/year treating capacity

Note:  Inlet/Outline size options are 1" or 1 1/2"

kdfft.com - KDF Information
GAC Contaminate Reduction List (pdf)

This is ideal for whole house purification of many contaminates. If you want to also remove fluoride, you'll want our whole house fluoride system.
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