A low-flush or low flow toilet is a flush toilet that uses significantly less water than a full-flush toilet. That means, they use 4 to 6 litres instead of the 8 to 20 litres. Low-flush toilets use a special design of the cistern and the siphon in order to allow the removal of faeces and excreta with less water. Most often, they also include a-dual flush system, with one flush being designed for urine only using less than half a litre for flushing. Today, there are many suppliers of different models of low-flush toilets all over the world.