Have you cleaned your water cooler lately? Pristine® H2OK Water Cooler Cleaner introduces the new PRISTINE® H2OK Water Cooler Cleaner:1 treatment good for 3 months to refresh and remove any odour and taste causing bacteria taking up residence in the home or office water cooler / water dispenser. Add H2OK to empty cooler, wait 15 minutes, drain and drink safe, fresh tasting, clean water. Other uses; clean water filter, water bottles, water bags, carboys, camel packs. Regular maintenance of your water dispenser and water bottles will ensure you of having pure, fresh tasting water!