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The Katadyn Guide Replacement Cartridge is the replacement element for the Katadyn Guide Water Filter. It now comes with a 50 micron membrane to filter out particles larger than 50 microns. It's always a good idea to pack a second element when you head to the backcountry.

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Here's what others have to say...

Unanswered Question

I just came back from a 50 mile back country...

I just came back from a 50 mile back country hike on the AT. On the third day my unit developed what seemed to be an air lock which I fixed by priming it. On the fourth day, it just quit and would only spit clean water. Will replacing the filter fix this or is it a pump issue?

Unanswered Question

I have a Pur scout filter and recently...

I have a Pur scout filter and recently ordered a replacement cartridge (Katadyn Guide filter) and have noticed that it filters 50 microns and higher. I thought my original filter was somewhere around 5-10 microns. Is 50 microns small enough to filter out giradia and cryptosporidium?

I have a very old Pur hiking water filter,...

I have a very old Pur hiking water filter, but I do not remember the name of my particular style. This filter appears to be the samedesign but I cannot find any measurments for it. Does anyone know if it fits teh older Pur filters? Mine is gray and blue with the intake and output hoses both comming out the bottom.

Best Answer

The above filter is the replacement for the PuR Guide system (see photo).

The above filter is the replacement for the PuR Guide system (see photo).

Works Great for lots of Hikers

    Have used this filter with our Venture Crew (10 - 12 people) on 2 multiday hikes. Just returned from the first 20 miles of the A.T. in Georgia. This filter is great. It is quick, pumps lots of good clean water, and has filled everyone's nalgenes and camelbaks repeatedly. Great product!

    Will this filter work on an old PUR Guide?I...

    Will this filter work on an old PUR Guide?I can get NO joy in Australia anymore for this old faithful.


    cool,cool water

      used it for five weeks traveling form Banff to the Arctic Circle, by way of the Dempster, back down and over to Alaska, then back east. The ONLY thing that slowed it down was water we pumped from an old well that clogged the sediment cover....a quick wash and back to normal....just now thinking of a replacement filter


      Use only in crystal clear water!

        I used my Guide filter, with the prescreening kit, on a recent trip. My hiking partner had his MSR Miniworks. My filter clogged and was reduced to a trickle after only 8 liters of pumping. Thank goodness we had the miniworks which was field maintainable! This filter is good for crystal clear water only.

        I've used the system for 10 years in all types of water. Put a couple of coffee filters and a rubber band in the case. If the water is dirty, slap the coffee filter on the intake filter you put in the water.