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Katadyn TRK Gravidyn Replacement Element

up to 25% Off
sale $44.96 Original price:$59.95

TRK Gravidyn Replacement Element

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 0,2 micron ceramic depth Gravidyn element will filter up to 13,000 gallons (52,000L) of water, keeping you safely germ-free.

  • A replacement element for your Gravidyn filter
  • Filters out microorganisms such as Cryptosporidium and Giardia
  • Carbon element removes unpleasant tastes and odor including chlorine
  • Filter will work even on extremely dirty water
  • Item #EXT0016

Purifying Element
microorganisms, sediment
silver-incorporated ceramic depth
4 quarts/hr
Field Cleanable
2 x 10in
Claimed Weight
Recommended Use
backpacking, hiking, weekend camping
Manufacturer Warranty
1 year

Tech Specs

What do you think about this product?


>Rating: 3

Fine Product, filters require maintence

I've put it through the wringer

This filter has become the standard in field camps here in AK. Overall it works great, but in water with a heavy sediment load the filters become quickly clogged. It is important to clean them regularly in order for them to work properly. I have never found they operate at a 1 gallon per hour rate, except maybe the first 1 or 2 uses. Hpwever, if you stay on it these can provide plenty of drinking water for large groups.

>Rating: 5

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 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.


Cabin Filters

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.


how close to bottled water does the Katadyn...

how close to bottled water does the Katadyn Gravidyn produce?


Dear Sir, We, Iveriapharma Ltd....

Dear Sir, We, Iveriapharma Ltd. Tbilisi.Georgia would like to purchase ceramic filters and would like to know what size and mickon of filters could you offer? Thank in advance Ms.Nino

The TRK Gravidyn replacement element filters down to 0.2 microns.


what are the dimensions (length & diam)?

what are the dimensions (length & diam)?

14.5" long by 1.5" diameter.