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LifeSaver water purification Cube
LifeSaver water purification Cube
Girl using the LifeSaver Cube to fill a water bottle on a boat on a lake in Austria
LifeSaver Cube being used to filter river water

LifeSaver Cube

(3 customer reviews)


A robust and portable water filter capable of delivering 5,000 litres of clean water for family use. The LifeSaver Cube holds up to 5 litres at any one time and is designed to support families whilst on the move, this includes families who are away from a mains water supply or for emergency response use by aid organisations and governments.



SKU: CUB0028 Categories: , , ,


Designed and developed with International NGO – Oxfam, the LifeSaver cube delivers clean water for individuals, families, groups and communities on the move. It is the ideal clean water solution for emergency preparedness – small enough to be transported or to be stored in a vehicle, or to used as a water filter in the home.

The LifeSaver Cube was designed to store and carry dirty water. We recommend storing dirty water, either in the cube or in other storage containers, and filtering through the cube as and when clean water is required, to prevent recontamination of previously filtered water.

This product includes:

– Lifesaver Cube (filters 5,000 litres/1,320 US gallons)

– 1 x activated carbon filter

– Maintenance pack (1 protective cartridge cap and 5 spare o-rings)


The LifeSaver Cube is a microbiological water filter that uses ultra filtration technology to filter out viruses, bacteria, cysts and parasites from contaminated water sources. LifeSaver technology filters out bacteria to a minimum of Log 6 (99.9999%), viruses to a minimum of Log 4 (99.99%) and cysts to a minimum of Log 3 (99.9%) as specified by NSF Protocol 231, based on recommendations of the U.S. Environmental Protection Agency (EPA).


Effective against:

VIRUS REDUCTION*> 99.99%        (Log 4)
BACTERIA REDUCTION*> 99.9999%    (Log 6)
CYST REDUCTION*> 99.9%          (Log 3)
FILTER MEDIAUltra Filtration (UF)
CHEMICAL REDUCTIONActivated carbon filter removes chlorine, taste and odour, improving the palatability of water
DRY WEIGHT1.2 kg/42 oz
VOLUME OF WATER FILTERED**5,000 litres/1,056 US gallons
INITIAL FLOW RATE**1.25 litres/min @ 0.85 bar (g)

* Tested by BCS laboratories issued 18/02/16 based on an adaption of NSF/ANSI P231 Protocol. These units are tested with two different types of water to challenge the filtration capability beyond the standard use. All figures quoted are taken from the stressed challenge phase of the test imitating sewage contaminated water.

**Volume of water filtered by the product and flow rates dependent on the composition and turbidity of the feed water.

3 reviews for LifeSaver Cube

  1. Colin Nisbet (verified owner)

    This filter is one of the best I have seen. Most of the competition have filters which are the same speed (as in flowrate), and you have to put up with the low flowrate if you want to remove all biological contaminants. The cube is highly robust and ideally suited to the harsher areas of the world. The five litre capacity is essential for hotter countries, if you are walking in the summer in Australia, you will need every drop. If you have a very clean source of input water, then you can even use the charcoal filter and remove the (very expensive) main filter, using a few mls of bleach or iodine as a sterilising agent. I have bought many filters over the years and only one was better built, but there was no built-in carry container. The only downside is the cost of the replacement main filter cartridge, the price of this is too high.

  2. Squirrel23

    Our water supply comes directly from our spring. In the summer we worry about the growth of bacteria, and while we consider investing in hundreds of pounds worth of filtration/uv treatment, this has done the trick.

    As a side note, we have the container standing by the sink on a resin type kitchen counter tip. It does get a bit slippery (you can really only use one hand to get the water out into the glass which is being held by your other hand), so we have improvised by standing the container on a reed type placemat.

  3. Z

    As a designer of water systems, I solemnly assure you that a .2 micron filter will save your life and I guarantee it will give you clean water. The .2 micron filter is small and the water dribbles out of it’s 1/4″ nozzle.
    While it IS dribbling super-clean water, it is going to take a minute to fill your coffee cup. If you want to hold your refrigerator door open for a whole minute to get a cup of water; well, your Mom will probably kill you.
    This unit is great to take to Africa, where there is little clean water, which is exactly what I bought it to do: The size is good in that it holds enough to get me through the day.
    It takes about 200 pumps to get through the whole container, which is fine, since one has little else to do while waiting for the cup to fill.
    If one is to claim that it “works” at any angle; well, we’ll need to define “works”. You lay it down on it’s side with the pump up; either side for lefty’s or righty’s – that is good. Any other angle either makes no sense or is just not practical to the thirsty.

    It’s a bit pricey at $200 – which I suppose is because, if you have relatively clean water to start with, you will be served a large quantity of water before filter replacement. I didn’t remember seeing the disclaimer in the Literature previous to the enclosed, that the cleanliness of the water going in compromises the life of the filter – now, while that makes total sense, I just did not figure that in when calculating the cost per liter.

    I like the cube, for what I bought it for; however, I am going to try another filter for $75 that will give me 13 ounces in a minute.

    To summarize: While it’s probably not much good for a USA family’s daily home use; it is absolutely good for camping [not backpacking]; & for all other countries with problematic water, it is exceptional. In Tanzania, where I am going next month, it costs 2 months salary

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