Grayl Ultralight Water Purifier


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Grayl Ultralight Water Purifier


Customer Reviews

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Grayl Ultralight Water Purifier Bottle is the portable water filtration system that’ll give you safe-to-drink water in just 15 seconds. No chemicals. No complex kit. No waiting.

Running out of potable water can quickly turn a walk in the wild into a Ray Mears nightmare. The solution? 1) Lug a jerrican of the clean stuff the whole way round (stopping halfway for new knees); 2) Drink water that tastes like a chemical toilet; 3) Carry a bunch of kit that looks like you robbed a milking parlour; or 4) pack the Grayl Ultralight Water Purifier Bottle.

Weighing just 300g this full spectrum water purifier bottle filters and purifies – removing bugs like viruses and bacteria; particulates like sand and tadpoles; chemicals like chlorine and benzene; and heavy metals like lead and arsenic. Oh sure, you can leave all those things in if you like. Us, we’ll take the 15 seconds Ultralight needs to turn half a litre of mountain goo into high quality H2O.

How does it work? Mad science. Start by filling the BPA-free container with water from your nearest stream, lake, manky tap or hosepipe. Rest it on the floor and plunge down the filter like a cafetiere. It needs a little bodyweight behind it, but anyone can do it. In just 15 seconds this portable water filtration system will have scoured the water of harmful drek – ready to drink, or seal for later.

Easy to change (and available to buy separately), the replaceable Purifier Cartridge is good for 300 uses - that's 150 litres of fresh, pure water straight out of the box. Carry extra cartridges and keep the water flowing indefinitely.

It’s hard to think of many good-looking gadgets that really are life-or-death. The Grayl Ultralight Water Purifier Bottle just hiked to the top of our list. 

The Lowdown:

  • Full spectrum, antimicrobial, portable water filter and purifier
  • One-press filtration
  • Takes only 15 seconds (2 litres/minute)
  • Removes:
  • 99.9999% of viruses (e.g. Rotavirus, Hepatitis A)
  • 99.9999% of bacteria (e.g. E-coli, Salmonella)
  • 99.999% of protozoan cysts (e.g. Giardia, Cryptosporidium)
  • Particulates (e.g. sediment, dirt)
  • Chemicals (e.g. chlorine, benzene)
  • Heavy metals (e.g. lead, arsenic)
  • Lifespan of Replaceable Purifier Cartridge: 300 uses (40 gal/150 L)
  • Active Technology: Electro adsorption, ultra-powdered activated carbon and silver treated zeolites
  • Chemical and BPA free
  • Meets NSF/ANSI Standards: 42+53


  • Measures approximately 24.5cm x 7.3cm
  • Weighs approximately 309g (10.9 oz)
  • Holds approximately 473ml (16 oz)

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Estimated Delivery
Standard Delivery
Est Delivery: 3-5 days
Price: £3.99
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Est Delivery: 1-2 days
Price: £4.99
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Price: £9.99
Saturday Delivery (Order before 1pm)
Price: £14.99


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Delivery Time
Europe: 5-10 days
Rest of World: 7-14 days

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Import Duties
All orders are shipped from our headquarters in the UK. You will therefore be responsible for any import duties which may be applied to orders shipped outside the EU.

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