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Big Berkey 2.25 Gallon Water Purifier | Includes 2 9 inch Ceramic Filters

Big Berkey 2.25 Gallon Water Purifier | Includes 2 9 inch Ceramic Filters

Item SKU: BK4X2-CF

MFG ID: BK4X2-CF | UPC:





The versatile Big Berkey® system is the ideal system for use at home with small or medium sized families, travel, outdoor activities or during unexpected emergencies.

This powerful system purifies both treated water and untreated raw water from such sources as remote lakes, streams, stagnant ponds and water supplies in foreign countries, where regulations may be substandard at best. Perfect for everyday use, outdoor activities and a must in hostile environments where electricity, water pressure or treated water may not be available.

The Big Berkey® system removes viruses, pathogenic bacteria, cysts and parasites and extracts harmful chemicals such as herbicides, pesticides, VOCs, organic solvents, radon 222 and trihalomethanes. It also reduces rust, silt, sediment, foul taste and odors and unhealthy minerals such as lead and mercury. This system is so powerful it can remove red food coloring from water without removing the beneficial minerals your body needs. Virtually no other system can duplicate this performance.

Constructed of highly polished 304 stainless steel, the system comes complete with two purification elements and utilizes the latest technological advances. This system has a storage capacity of about 2.25 gallons (8.5 liters) and when in use it stands 19.25" in height with a diameter of 8.5". The upper chamber nests within the lower chamber for transport and stands only 13" in height.

Not available in Iowa. 9" Imperial Super Sterasyl replacement element not available in California.

The Sterasyl™ Ceramic Shell
The Sterasyl™ grade ceramic is designed to remove suspended solids and pathogenic bacteria (>99.99%).  The filter elements are produced using the latest ceramic techniques to provide a hollow porous ceramic, which is fired at a temperature in excess of 1,000º C.  They are designed to operate with water flow going from the outside to the inside of the element. The ceramic shell exhibits a strictly controlled pore structure, so as to provide efficient sub-micron filtration, a proven defense against hard-shelled parasites such as Cryptosporidium as well as pathogenic bacteria. The ceramic also removes other less harmful, but equally unpleasant particulate debris such as rust and dirt.

Composition of the Sterasyl™ ceramic contains silver.  This silver is a material designed to significantly inhibit mitosis or grow through. The result is that bacterial growth is inhibited from occurring within the Sterasyl™ ceramic element (which is possible with the other ceramic filter elements). Because of the silver, Sterasyl™ filter elements do not require sterilization after cleaning.

The Sterasyl™ filter, when used in in-line housings, is certified by the National Sanitation Foundation (NSF) as meeting their Standard No 42 for materials.

The Super Sterasyl™ Water Filtration Element
The Sterasyl™ ceramic is the ceramic shell used for the Super Sterasyl™ filter element. Accordingly, this filter element will have, at a minimum, the filtration benefits of the Sterasyl™ ceramic.  Additionally, the bore of the ceramic shell is filled with granular activated carbon, which enables the filter to reduce chlorine and organic chemicals while improving the color, taste, and odor of the source water.  The re-cleanable Super Sterasyl™ filter elements remove suspended solids, parasites, cysts and pathogenic bacteria (>99.99%) and reduce organic chemicals, pesticides, herbicides, organic solvents, trihalomethanes, SOCs, VOCs and foul tastes and odors. The top of the Super Sterasyl™ element is closed with a unique ceramic dome.  This prevents the possibility of breeching(leakage), which can occur with filtration elements that are closed with a plastic cap.

Super Sterasyl™ Filters:

Remove Pathogenic Bacteria:
Cholera, Typhoid, Salmonella, Serratia, E.Coli, Fecal Coliform > 99.99% removal.

Remove Cysts (>99.999%):
Cryptosporidium Parvum and Giardia Lamblia - 100% removal (based on tests by Arizona State University).

Reduce Organic Chemicals:
Pesticides, herbicides, organic solvents, SOCs, VOCs, trihalomethanes.

Reduce Chlorine > 90%

Reduce Turbidity, Sediment and Particulate:

@ 0.9 micron                  > 99.99%
@ 0.5 – 0.8 micron          > 99.9%
@ 0.2 – 0.3 micron          > 98%
(based on tests by Spectrum Laboratories, Minneapolis, MN).

Maximum working pressure:           125   psi
Maximum working temperature:      100º F
Minimum working temperature:        40º  F 

Super Sterasyl™ ceramic filters 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, and WRc Gwent – UK.

Bacterial mitosis and “grow-through”
Mitosis is the name for the usual method of bacterial cell division. This division is characterized by resolving the chromatin of the cell nucleus into a threadlike form that condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of the two new daughter cells. When conditions of growth (cell division) are right (proper environmental conditions, temperature, pressure, etc.) and sufficient nutrients, the “threadlike forms” can penetrate ordinary ceramic structure and create bacterial cells on the inside of ceramic elements.  The Sterasyl™ grade filter elements incorporate silver into the porous ceramic shell, which inhibits mitosis or  “grow-through”.

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