Berkey Earth 7" Water Filtration Element version 3.1
Berkey Earth 7" Water Filtration Element version 3.1
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List Price: $30.00
Sale Price $25.00
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Stock Status:In Stock

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Product Code: EB-7FILTER




Berkey Earth Ceramic Water Filter Element

The core of the Berkey Earth ceramic water filter element is made of the most basic element...Earth. Artisans in Asia and Europe first refined this substance to create exquisite porcelain and pottery for the Shoguns and Kings. The type of earth used is called Diatomaceous Earth [D.E.]. It is literally trillions of fossils left by microscopic, one-celled algae called diatoms that have inhabited the waters of the earth for the last 150 million years.

Diatoms have a unique ability to weave microscopic shells that they then use for protection and locomotion. These shells are permeated with tiny holes in a pattern so unifrom that even the slightest change in their design usually signifies a different species. As the diatoms died, their shells survived, slowly piling up in deposits at the bottom of geological lakes and lagoons. When these lakes dried up, what remained were huge deposits of "diatomaceous earth". Today there are over 1500 uses for Diatomaceous Earth, from abrasives for toothpaste, filtering agents for water and milk, heat insulators for kilns, to polishing agents in nail polishes, and many, many more. Berkey Earth water filter elements have porous ceramic outer shell made of Diatomaceous Earth. The tiny holes in these shells [80,000,000 pores] have been impregnated with pure that can trap bacteria down to as low as .22 of a micron in particle size [1/100,000 of an inch]. Laboratories consider a filtering medium with an effective pore size of .01 micron to .45 micron to be bacteriologically sterile and .45 micron to 1.0 micron to be bacteriologically safe.

The flow rate of the ceramic filter can be easily renewed by simply brushing its outer surface under running water. As the top layer of ceramic and the contaminants are brushed off and flushed away, a new layer becomes available. This process can be repeated many times before the ceramic material is exhausted.

A Closer Look Inside

Kieselguhr Ceramic--Stage One

Berkey Earth ceramic is made from Kieselguhr Diatomaceous Earth and fired at incredibly high temperatures. Over 80,000 overlapping pores make up each element. The entire ceramic wall is impregnated with pure silver. This feature provides absolute mechanical filtration to .9 of a micron (.5 ANSI). 99.99% rejection of bacteria and cysts. Bacteria and any other foreign particles are trapped on the outside of the element while the water passes through the ceramic wall to the inside of the element.

Why Silver?

Over time, bacteria can become trapped either on the outside of the element or in the ceramic pores. If not controlled, they could grow and spread, polluting the filter. However, when the silver comes into contact with water, it releases small quantities of positively charged metals ions. The bacteria ingest these ions into their enzyme system and are neutralized. Silver has been long proven as a disinfectant which inhibits bacteriological colonization of the ceramic wall.

The Core--Stage Two Inside the Ceramic shell is a post filter which is manufactured by using a treated granular carbon to form a tightly packed matrix. This post filter provides Chemical Reduction of chlorine, pesticides, solvents, etc. Key Features

  • Removes Pathogenic (disease causing) Bacteria (>99.99%) - Cholera, Typhoid, Salmonella, Serratia, E. Coli, Fecal Coliform, Etc.
  • Removes (99.99%) Cryptosporidium Parvum and Giardia Lamblia Cysts (Beaver Fever)
  • Sub-Micron Particulate Filtration
  • Quickly and Easily Cleaned for Prolonged Life and Outstanding Economics
  • Inhibits Mitosis
  • Does not "Plug Up" Internally
  • No Tools Required to Service

Berkey Earth ceramic water filters have been available in the United States since since World War II and the ceramic shell of our Super Sterasyl element is an NSF Listed Component and is manufactured to meet NSF Standrad 42 for materials

Berkey Earth are the only ceramic filters available today to be certified under both of these standards.

Berkey Earth filtration elements are manufactured to the following international standards and have been tested and approved by the following independent bodies or agencies:

  • ISO-9000: 2000
  • Hyder Labs® UK
  • Spectrum Labs® UK
  • WRc® Mednenham UK
  • Clare Microbiology® UK
  • Loughborough University - UK
  • University of Arizona® USA
  • Thresh, Beale, and Suckling® UK
  • WRc Gwent® UK
  • Over Many Independent Laboratories Worldwide
  • NOTE: Sold as a single filter element
  • The most powerful gravity-fed element in the Filtration class, backed by independent testing.
  • Filtration class: Micro-Filtration Technology. Tested to reduce contaminants to bacterial level
  • Chemicals, herbicides, pesticides, VOC’s, THM’s, heavy metals and more are easily reduced to 99.9%
  • Proprietary formula comprised of Diatomaceous Earth, granulated activated carbon and other media components, designed to exceed filtration standards
  • Each Berkey Earth® Filration Element will filter up to 3,000 gallons of water or last up to 3 years, before replacement is needed.
  • With 4 elements (in a Big Berkey® system), the 7” elements can produce flow rate of up to .­­8 gallons per hour or up to 19 gallons of water in 24 hours
  • Ideal for the price-conscious consumer to get started with a highly efficient filter system, at a more affordable price
  • Economical entry price affords those who would like to upgrade to the more powerful Black Berkey® Purification Elements down the road, the ability to get an effective and economical system now and then upgrade later
  • Available in 7” and 9” sizes
  • Compatible with BerkeyPF-4™ Fluoride and Arsenic Reduction Elements

Filter Cleaning Instructions.

How to Clean Your Filters

You can easily refresh the flow rate of the ceramic filter by brushing the outer surface with a soft toothbrush or Scotch-Brite¨ pad under running water. As you brush off the top layer of ceramic and the contaminants, a new layer becomes available. This process can be repeated over and over before the ceramic material is exhausted.

  1. Carefully remove the ceramic filter from the upper chamber.
  2. Using a soft toothbrush or soft scouring pad (3M Scotch-Brite¨ or similar), scrub the filter under running water or in a bowl of water. Always brush away from threaded mount, taking care not to contaminate the mount. Never use soap or detergents.
  3. Replace the filter in the upper chamber. Be sure that sealing washer is properly seated by turning nut until tight.

Note: Rubber gloves are suggested.

Compare Berkey Earth Filters with Black Berkey Filters

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