GRAYL GeoPress Replacement Filter & Purifier Cartridge (Black)

Definitely a must have in your emergency bag.

I use this product as an emergency water filtration system. I tried it on my own well water and have been using it for a month or two. It started getting very tough to push down after maybe 20-25 presses (24 oz. bottle) and after as many more, it takes at least a minute or more to press down. This is supposed to handle 300+ presses (around 65 gal. water), and even though the water still tastes amazing, this is tap water. Clear tap water. It shouldnt be this tough to press after so few presses. Its most frustrating. Other than that, this is a stellar product. Great concept and function, and I even bought the Ultralight bottle as well.......mostly because I ordered those filters instead of the Geopress ones, so why not? Its only money lol

We travelled to Cancun, Belize and Honduras on our cruise. Took the Grayl and filter. We used our Grayl water bottle and water from Mexico on all of our excursions and never once got sick. We also didnt need to purchase a case of bottled water on our cruise ship, we used the Grayl water bottle and filled up water from our suite. This bottle and filter are so amazing that we have recommended it to our kids and friends for hiking, emergencies and travel.

Very easy to use. Revolutionary in its concept and design. Some R&D might need to be considered about how to reduce water source contamination remaining on the outside of the collection cup after dipping it in a water source. But overall, this is an extraordinary product and I highly recommend it!

Nice to keep an extra filter on hand. Works great!

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I keep my GeoPress with me always..Since getting this, I no longer have to worry if the water is okay to drink or buy water in plastic bottles which is a pollutant.

Just received it; will not be using it til I need to replace the current filter for my Grayl Geopress bottle which I ordered at the same time. It arrived quickly and it looks like a high quality product. I look forward to knowing that I will be assured of pure water without fussing about with tablets, waiting times, or dealing with tubes and backflushing on my upcoming camping trips. To insure its longest life, I plan to screen out particulates in sediment-laden waters and keep the filter from freezing.

Love our grayl bottle- this filter ensures we dont get sick when traveling to remote areas of other countries. Have used it to travel to South America and areas in the andes mountains to visit family and have avoided ever getting sick or travelers diarrhea... unlike some of my other relatives also visiting from the states... this easily filters enough for me, my husband and our kid... it does take some strength to use but with the size of the filter that is to be expected.

These cartridges do a great job removing bad tastes and impurities. Used one for tap water all over Thailand and never got sick (except when I bought an iced coffee on the street in Bangkok and forgot about the ice in it).