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- Katadyn TRK Gravidyn Replacement Element
Katadyn TRK Gravidyn Replacement Element
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The Katadyn TRK Gravidyn Replacement Element will restore your filter to working order after it chokes to death on an endless supply of pond scum. The field-cleanable .2 micron ceramic depth Gravidyn element will filter up to 13,000 gallons (52,000L) of water, keeping you safely germ-free.
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Cabin Filters
By: Wolfman
July 22, 2009
I built a system to filter the creek water at our remote cabin in central Idaho. ( the three black tubes in the upper left house the Gravidyns) I store the water in 60 gal barrels then pump it into the house with an RV pump powered by solar pannel and battery.
Cool Clean Water
By: Wolfman
July 22, 2009
These gravidyns supply all clean potable water for two of us for extended stays at our cabin. I use a house filter first to get the chunks out, then the gravidyns. The time of year(muddy creek) dictates how often I have to clean the filters and that only takes a few minutes. I will buy these again.
Change me.
Cool Clean Water
These gravidyns supply all clean potable water for two of us for extended stays at our cabin. I use a house filter first to get the chunks out, then the more...

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