Tablets come to you as in picture, without glass! They are sealed in packs of 10 and have an expiry date of September 2015
1-5 packs - 80p postage
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over 5 packs - £1.25 postage
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overseas £1.75
Oasis Water Purification Tablets are used by all the largest NGO's for Emergency Water Purification in disaster situations and by Social Marketing Organisations and Pharmacy Distributors for Household Water Treatment where water supplies are not safe and reliable. They also have applications in travel and military settings.
Oasis Water Purification Tablets are the only NSF approved tablet manufactured in the UK and are manufactured under GMP and ISO9001:2000 by Hydrachem, the largest manufacturer of NaDCC tablets in the UK.
Guideline value recommended by the World Health Organisation for emergencies and disasters is 5ppm. For effective disinfection there should be a residual concentration of free available chlorine of 0.5ppm after at least 30 minutes contact.