The world's best water purifiers :!: The Seagull IV range of water purifiers are for home, commercial or recreational use. The First Need range of purifiers are ideal for camping hiking or travelling. These water purifiers require no chemicals, batteries or waiting time. They are independently certified to meet US EPA standards for the removal of bacteria, cysts and viruses. They are extremely effective in removing heavy metals and chemicals from your drinking water leaving you with pure, crystal clear water. Not only will your water taste better but it will be better for you. For more information please visit our website. :D