L. L. Equipments and machines produces water coolers with storage tank. These coolers are equipped with concealed overflow plumbing with high quality connection fittings prevents even the minutest leakages. The cooling coils are made of high quality dehydrated copper tubes and are soldered and applied with a special thermastic compound, which ensures faster cooling and longer time gaps between cooling cycles. Thereby coolers consume less electricity. Faucets fitted to these coolers are provided with adjustable levers to fill the glass automatically. L. L. Equipments also provides online water filter for pure drinking water on demand, with these water coolers.