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Katadyn Micropur Purification Tablets - 30-Pack

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    63 Reviews


    Micropur Purification Tablets - 30-Pack

    Micropur MP1 tablets release chlorine dioxide, the same substance used in municipal drinking water plants worldwide. So not only is the water safe to drink, it also tastes great. Tablets are individually sealed for longest shelf life (5 years). Each of the 30 tablets included treats 1 liter of water. Wait time is as follows: 15 minutes for Viruses and Bacteria in all water, 30 minutes for Crypto and Giardia in normal water (60ºF, clear water), and 4 hours for Crypto in worst case water (39º F, very dirty, slightly acidic water, i.e. the kind you'd want to double pump with a purifier).

    • Water tablets for purifying water while on the go or camping
    • Chlorine Dioxide is the same chemical used at water plants
    • Tablets used to clean water for drinking purposes
    • 5 year shelf life lets you plan ahead for multiple summers
    • Includes 30 tablets so to cover your next couple trips
    • Item #EXT0040

    Tech Specs

    Purifying Element
    chlorine dioxide
    virus, bacteria, cysts, Giardia
    Treatment Dosage
    1 packet per liter
    Treatment Time
    (virus and bacteria) 15 min, (Crypto and Giardia) 30 min, (Crypto in wosrt-case water) 4 hour
    30 tablets
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Always carry

    • Familiarity: I've put it through the wringer

    Only once have I had a filter fail, and I was glad I brought these. Easy to use, they weigh nothing and they kill everything, including crypto. The taste is minimal; open your bottle and let the air at it to lessen the taste.
    I like filter water directly into my water bladder, and then toss 2 Micropurs in on day 3 or 4 of a backpacking trip to clean it.
    A great product.

    just in case

    • Familiarity: I've put it through the wringer

    I always keep a few with my while hiking, backpacking and fly fishing. If something happens to my filter or I run out of water I know that I can use these and be safe.

    Nice backup

    • Familiarity: I've used it once or twice and have initial impressions

    Bought as a backup for backpacking in case my primary filtration fails, have yet to use them but for the price it's an added comfort in the backcountry.

    Takes 4 hours for everything.

    • Familiarity: I've used it several times

    Purification time for everything is 4 hours. From what I can tell works great. We always have there in the pack and even keep some at home just incase.

    Taste isn't terrible

    • Familiarity: I've used it several times

    A stable in any emergency kit. Also really handy on long trail runs where carrying a pump doesn't make sense. I would highly recommend keeping a couple of these packets in your bag.

    Forget about water purifier pumps

    • Familiarity: I've put it through the wringer

    Why carry the extra weight of a pump? these tablets work great and really don't have much of a taste. They are perfect for backpacking. I treat a gallon a day with them every trip I go on. Beats bending over a river and working a pump for 5 minutes.


    • Familiarity: I've used it once or twice and have initial impressions

    These tablets are essential for treating water in the backcountry. They don't taste horrible, and they work quickly at killing most virus and bacteria. The individually perforated tablet packages make it easy to pack just the right amount for any trip.

    When You've Gotta Be Sure

      I often double up on filtration when I'm pulling water from questionable sources. Typically I've used a sawyer and iodine when I'm extra paranoid. These work better than iodine and don't taste bad. It's worth the piece of mind in situations where you absolutely cannot get sick.

      Tastes way better than I anticipated

      • Familiarity: I've used it several times

      These are the best for out in the wild when water either isn't readily available or you are too tired to pump with your filter (we've all been there). Taste is honestly not bad at all and doesn't stain your camelbak bladder or nalgene dark brown like other iodine tablets I've used in the past. I always have a couple packs of these stashed in my backpacks and car and of course always bring them in addition to my water filtration system on backpacking trips. For sure recommend!

      Tastes ok

      • Familiarity: I gave it as a gift but have feedback to share

      My brother used some of these on a recent trip and said they worked well - taste OK and he didn't get sick - so I bought some for myself to throw in a bug out bag and have generally for a backpacking trip coming up.

      Decent Purification

      • Familiarity: I've used it several times

      I only use these as a backup to my filter. I've used Aqua Mira before and like it, but these tablets are handy. I'm going to stay with Aqua Mira for long hikes and continue to use these tablets periodically, but not as my primary method of purifying water.

      Works, Tastes ok

      • Familiarity: I've used it once or twice and have initial impressions

      I purchased these when I was doing the Salkantay Trek in Peru. They are small and easy to pack. Water tastes better than most other purifying tabs.

      best tablets I have used

      • Familiarity: I've used it once or twice and have initial impressions

      I typically come prepared enough on the water purification front to not need tablets, but always carry them for back-up.

      I have only had to use these once, but I was 16 miles from the nearest city on a 260+ mile hike and this got my up and over the pass without getting any nasty tummy bugs.

      I have used other types of purification tablets and these bar far had the least taste when the water was ready to drink. A big bonus for tablets, as taste is one of my least favorite aspects of having to use tablets.

      A must as a back-up to a quality water filter.

      Saving for an emergency

      • Familiarity: I've used it once or twice and have initial impressions

      I got these for a canyoneering trip down to Escalante, UT just in case the Miox Purifier and Katadyn Vario both failed from the very silty river water. I ended up not needing them which is fine with me. I'll just hold onto these for an emergency water purification situation. It's always good to be prepared!

      If I filled a 3 liter Camelbak Antidote...

      If I filled a 3 liter Camelbak Antidote Reservoir with flowing stream water in the mountains, would three of these tablets completely purify the full three liters or would tripling up not have the same effect as one tablet with only one liter of water?

      Best Answer

      Three tablets would purify three liters in one bag just as well as doing it one liter at a timer. Make sure you bleed the system after 5-10 minutes once the tablets are fully dissolved, then again after 20-25 minutes to flush any bacteria out of the tube and bite valve. I HIGHLY recommend always letting it sit for at least thirty minutes.

      I have an PUR Guide Filter/Purifier with...

      I have an PUR Guide Filter/Purifier with the old Iodine Filters, and am wondering if I replace the filters with the new filters (w/o Iodine ring) will the water be pure enough to drink straight from the filtration?
      Do I need to take some of the purification tablets as well? I'll be spending 8 days in the back-country of Belize and could really help knowing how to handle their water. I've used the PUR Guide here in the states with nothing but great results, but what about there in Belize.

      Best Answer

      in rough countries like Mexico or Africa I use my Katadyn Hiker Filter to get the little stuff then I still hit my water with some type of tablet. It just isn't worth the pain of getting sick and losing out on a summit. Get the 30 minute tablets though.

      Rich. Traveled and lived for extended periods in the backcountry of Guatemala, Blue Fields Nicaragua, El Salvador and Costa Rica. I used a Katadyn micropur hand pump filter and purified my water with tablets, specifically these tablets. Iodine does not kill cryptosporidium and there is a good deal of it in Central America, along with other things that do not survive the affect of these tablets. But some contaminant bugs disease are attached to small particulate and its best to remove as much of it as you can, then use the pill. The Steripen won't work for your purposes either You'll love being there. It's got great beaches and places to hike. Lots of folks on that gringo trail. Wear your passport and traveler's checks inside your shirt. Cheers!

      can you use just these tablets and no...

      can you use just these tablets and no filter? or are they only used in conjunction with a filter?

      Best Answer

      Well that is kind of the idea, but you want to probably boil it first and at least strain it. I keep these with my gear, but only really take them out in really boggy beaver infested areas. I find a good pump filter does just fine, like their hiker pro

      As is, kills bacteria, protozoans and viruses without the need for filtering. These just leave a bit of a chlorine smell and the faintest taste. The only reason you might want to do any filtration would be to remove particulates. The only thing you want to be aware of is the quality of the water and how long you need to allow the tablet to work. That said, in most places in the US, usually safe to drink in about 30 minutes. Effective stuff, but running water through a filter instead is a much more pleasurable experience, especially when the water starts warming up and the chlorine taste starts intensifying.

      I am traveling to a foreign country with...

      I am traveling to a foreign country with my two year old and the water is not safe to drink. He has a bad habit of getting bath water in his mouth. Could I treat the water with these and then feel safe if he get some in his mouth? How long should it sit in the water? Will it be ok for his skin? Can we wash dishes with the water that has been purified with these?

      Best Answer

      You're going to blaze through enormous amounts of tablets and money in the bath (1 tablet per liter), and by the time they treat for all possible contaminants (15 minutes-4 hours, depending on the type), the water is going to be no more than tepid, at best. Given that he's two, you may want to bathe him yourself so you can keep him from getting the water in his mouth, and limit the bathing, instead keeping up hygiene by using antimocrobial wipes whenever possible. Most municipal water supplies in the US use some form of chlorination, as do swimming pools, and these tablets are for potable water, but repeated and prolonged, concentrated soakings and steam isn't something I would want to expose my kids to. In the kitchen sink, a good antibacterial dish soap, along with as hot a water as you can stand and drying thoroughly should do the trick on the dishes. If available, the dishwasher is going to be the best solution though. Great question, but it sounds like this one falls to Mom and her magic washcloth.

      I'm also going to Peru this summer. Jason,...

      I'm also going to Peru this summer. Jason, would you take these over the MSR Miox Pen? I'm thinking of using both? Will these pills clean the lid, bottle, and threads of a nalgene the way MIOX will?

      Best Answer

      The Micropur tablets are all you need. With the Miox, you still have to wait. On the other hand, if you want water you can drink almost immediately, the Steri-Pen is a couple stirs and you're good to go. With any treatment, unless the chemicals, or light, or electrical current makes contact with surfaces like threads or the outside of the bottle, residue won't be treated. A good trick is to use one bottle exclusively for collecting the water, and then transferring that to the bottle you'll be drinking from for final treatment. Miox or SteriPen, bring extra batteries.

      I'm going with two girlfriends to Peru to...

      I'm going with two girlfriends to Peru to hike Machu Picchu next month. We're trying to decide on the best option for purifying our water on the 5 day trek. We're going with a tour group and they will boil the water for us, but we want to be extra cautious. Would it be acceptable to throw one of these tablets into a liter of their boiled water and drink it 15 minutes later? Also, I have a 3 liter pack -- could I just put 3 tablets in the already boiled 3 liters of water IN my hydration pack? Thank you for any advice you may have for us!!

      Best Answer

      I know you want to be cautious, but if they have really boiled the water (you've witnessed it), then there's no reason to purify it any longer. Once you bring water to a rolling boil, all of the microbes that will make you sick (protozoa, bacteria, viruses) are gone. However, I would still carry the tablets just in case you run into water that you want to drink that hasn't been boiled. By putting one tablet of MicroPur into a liter of water (X1 Nalgene bottle), and letting it sit for about 30 minutes, you will have safe drinking water. I would be very cautious where you get the water (DO NOT get water from stagnate water source...only use flowing water like from a stream or river). Where you get the water from is as important as how you treat it. Also water around the lip of the bottle or on the lid isn't treated and can make you sick. Make sure you clean the bottle (especially around the lip of the bottle where your mouth will make contact) thoroughly before use. Drying this area of all non-treated water will definitely help. Washing hands (or using anti-bacterial gel) and keeping things as clean as possible will help to make sure you stay healthy. Treating the water is only part of keeping yourself from getting sick!

      I'm curious, Is it advisable to purify 3...

      I'm curious, Is it advisable to purify 3 liters at one time in the same container, with three tablets, of course? Do people do this?

      Best Answer

      I think this is ok as long as you allow for the proper dwell time (20-30 minutes for giardia and 4 hours for crypto). I would also recommend stirring the water to allow the chemical to effect all of the water in the container. Also don't forget to treat the container itself, meaning the threads and the lid (if applicable). You only need a few bugs to make you sick...

      Can I use this to treat warm or even hot...

      Can I use this to treat warm or even hot water? I'm going on a trip to Africa. For a climb, some suggested to treat water even after the water is boiled by the accompanying staff (the reason is at high altitude the water might not have been completely boiled to bateria free level). Thanks.

      Can these be taken on an airplane? We've...

      Can these be taken on an airplane? We've read conflicting information and are flying to Nepal in a few weeks.

      Best Answer

      I'm not personally aware of Micropur tablets being restricted from airline flights but with everything going on in that industry within in the last seven years, anything could be possible.

      Here's a partial list of restricted items:

      You can also call 1-866-289-9673 for more information.

      Why should I trust my life to China with...

      Why should I trust my life to China with the constant scandals of contaminated product imports?

      Best Answer

      Unfortunately China has presented itself with this lack of trust image so I'd suggest using the "SteriPen." Here's more information:

      A healthy body, peace of mind, & trust is what's it's all about!

      Vince: China origin is an error on's web site. if you open the outer package, the foil that covers that tablets is marked "made in USA."
      That is not on the outer package though. Only the Sodium Chlorite in the tablets-6.4% ------is from outside USA-----it is from Spain.

      Also shelf life is 5 years and expiration date is on bottom of package.

      Unanswered Question

      Why should I trust my life to China with...

      Why should I trust my life to China with the constant scandals of contaminated product imports?

      Some packages are labeled micropur water...

      Some packages are labeled micropur water purifier tabs and others are labeled
      micropur water purifier tabs ultralight series. What is the difference?

      Thanx, Vince

      Best Answer

      Not real sure of the difference, though you could do some in-depth investigating to find out, the link below is the Micropur page on Katadyn's website

      Hi! First, My english is poor, I'm sorry...

      First, My english is poor, I'm sorry about that...

      And Why Katadyn Official Website say:

      "each Micropur tablet is individually wrapped and has a shelf life in (excess of 5 years)." Say:

      "Tablets are individually sealed for longest shelf life (3 years)."

      Best Answer

      I think Katadyn is estimating the longest possible shelf life while still retaining efficasy & is taking the safest approach. Where chlorine dioxide is concerned, I'd say three years is more than enough shelf life.

      Has anyone used these in Africa? I'm headed...

      Has anyone used these in Africa? I'm headed to Malawi for three months and am trying to figure out what the best water purification method is. I'm assuming a flitered bottle thing, but I'd like to have these too. Could you double the two methods up? Would that kill me?

      I have not been to Africa but these tablets are great, little taste and have used them with multiple water conditions. You don't want to chance a filter breaking and then not being able to get the parts. Be sure to get a shit ton of these things though because 1 tab only treats 1 liter. Also, use only clear bottles, because of the amount of sunlight if you are able to put the micropur in the bottle and then let it sit in direct sunlight you will get the UV exposure along with the chemical treatment. About 5-6 hours in the sun will help as well. You can always double up on filter and chem treatment, can't hurt. Hope this helps, good luck in Africa.

      The ceramic filter cracked on my water...

      The ceramic filter cracked on my water purifier so now I am looking at tablets for a cheap alternative. I know you cannot use Iodine for extended use but are there time limitations to the use of this product. I will in the nevada wilderness for 55 days and I need a cheap water purification solution.

      Best Answer

      I may be a little late on this answer---but: Micropur tablets used as recommended: produce Chlorine Dioxide at a concentration of 4 PPM (parts per million). The Environmental Protective Agency currently recommends Chlorine Dioxide as part of the water treatment process for U.S. cities, with allowance of a higher concentration than Micropur gives.

      However, the other part of the city treatment process is microfiltration to remove organic matter from water.

      If your water is not clean to start with, you can get a by-product,chlorite, which is not good for small children ----or you, with long-term consumption.

      Bottom Line: Use Micropur where the water is pretty clean, if you are going to be drinking a lot of it.

      Other Chemicals: Main drawback for iodine is that it does not kill Cryptosporidium protozoa. Main drawback for chlorine liquid is: when you use it in water that contains organic material, you get carcinogenic by products.

      For a long solo trip in Nevada: I recommend the Katadyn Hiker Pro microfilter. I use Micropur tablets as a backup, or in Asia and South America with microfilters to kill viruses that filters don't remove.

      OK, 4 hours, 20 minutes, 15 minutes -- how...

      OK, 4 hours, 20 minutes, 15 minutes -- how does one decide? I'm planning a trip to the Sierra where the water will most likely be in the 30 degree F range, possibly in the low 40's. How do I determine how long to treat the water?

      Best Answer

      I'm a bit more paranoid, especially when hiking in heavily travelled areas or areas where cows or sheep may be present. Given the water temp and the general area, this would be my plan:

      Fill all water containers at night and disinfect all, especially hydration reservoir (4+ hours overnight)
      Any empty bottles after breakfast also get filled, disinfected for 4+ hours while hiking, with the exception of any water container on the outside of your pack that will warm with sun and ambient air temp. These get used to replace the hydration reservoir mid-day, if necessary, and are, in a perfect world, refilled and disinfected at the same time.

      The idea is to always have potable water while also disinfecting the remainder of your water store (if you don't want to carry a lot of water at any given time and water will be readily available on your trip, you can use a UV pen as a primary disinfectant, with chemicals for backup). In more remote areas where the water is clear and your altitude is high (less chance of upstream contamination), 30 minutes would be sufficient, for me. I have never gotten sick through this practice, which is the whole idea of disinfection. Others, like Randy, have probably not gotten sick with their practice either, so it's a matter of choice, risk and your own personal paranoia scale. I would never go less than 30 minutes and no one I know would either.

      I'm going to India . What about using it...

      I'm going to India . What about using it for hotel water not suited for drinking?

      Best Answer

      These tablets will work with non-potable hotel water, but I personally find tablets to be a pain because they take longer amounts of time to ensure water purity.I travel all over the world with my SteriPen. They're a bit more expensive, but it's worth every penny, I don't have any additives in my drinking water, and I know they're clean and safe. you're feeling the hocus-pocus vibes, you're not alone. I've got good friends in the beverage packaging and water purification systems industry who swear by UV, and the independent lab testing for SteriPen sold me on the concept.Here's the nitty-gritty details: [The overview] [The hefty lab stuff]

      Why not use Micropur tablets before...

      Why not use Micropur tablets before filtering? Everyone has said that they use them afterwards.

      Best Answer

      It's a simple balance of chemistry. The filter removes large elements, which means there's less for the agent to have to 'sanitize' when you drop in the tablet. By simply filtering large elements, they consume a large portion of the chlorine dioxide and there isn't enough left to kill the especially nasty microbes in your water.