Water Filters Elements
Sterasyl Ceramic Water Filter Element
The Sterasyl grade ceramic is designed to remove suspended solids
and pathogenic bacteria.
Composition of the Sterasyl ceramic contains pure silver. This
silver is a specially formulated self-sterilizing (bacteriostatic)
agent. The result is that bacterial growth is prevented from occurring
within the Sterasyl ceramic element (which is possible with the
other ceramic filter elements.) More importantly, bacterial grow-through
is eliminated. This silver content is about 0.07%, which is well
within the allowable levels recommended by the World Health Organization
and the E.P.A. Because of the silver, Sterasyl filter elements do
not require sterilization after cleaning.
The Sterasyl ceramic is the ceramic used for the Super Sterasyl
filter element. Accordingly, this filter element will have, at a
minimum, the filtration benefits of Sterasyl.
The Sterasyl filter, when used in a Doulton HIP in-line housing
(Model Designations: HIP/Sterasyl), is certified by the National
Sanitation Foundation (NSF) as meeting their Standard No 53 (health)
criteria. Standard No 42 pertains to self-sterilizing (bacteriostatic)
effects and particulate reduction. Standard No 53 pertains to cyst
and turbidity reduction.
Super Sterasyl Candle Water Filter Element
This cleanable filter element is designed to reduce suspended solids,
pathogenic bacteria, organic chemicals, and improve taste and odor.
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 10000C. They are designed to operate with water flow
going from the outside to 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 removing other less
harmful, but equally unpleasant particulate debris, such as rust
and dirt. The bore of the filter candle contains granular activated
carbon that aids in the removal of chlorine, reduces organic chemicals
and improves the color, taste, and odor of the source water. The
Sterasyl element has a unique domed ceiling assuring that leakage
cannot occur as may happen with capped filters.
Maximum working pressure 125 psig
Maximum working temperature 1000 F
Minimum working temperature 400 F
Contaminant Reduction and Removal
Cholera, Typhoid, Salmonella, Serratia, E.Coli, Fecal Coliform
> 99.99% removal
Cryptosporidium Parvum and Giardia Lamblia - 100% removal
(based on tests by Arizona State University)
Down to 0.9 micron, 100%; 0.5 - 0.8 micron with a filter efficiency
of > 99.99%
(based on tests by Spectrum Laboratories, Minneapolis, MN)
Pesticides, herbicides, organic solvents, trihalomethanes
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
When conditions of growth (cell division) are right (proper environmental
conditions , temperature, pressure, etc.) and sufficient nutrients,
the threadlike forms can penetrate the ceramic structure
of other ceramic shells and create bacterial cells on the inside
of the element.
Sterasyl grade filter elements incorporate pure silver into the
porous ceramic shell to prevent grow-through from occurring.
*Not yet available in California, Iowa, or Wisconsin.