Used for pigs to drink cleanly and water conservation. Stainless steel nipple drinker has a stem, which the pig moves by biting to release water. Durable and not subject to corrosion. When the pig removes its mouth, the stem returns to the closed position by the elastic force of the silicone rubber diaphragm. The animal water nipple drinker can supply hygienic water for pig. It is a indispensable drinking equipment for pig farm. High efficient, save time and save water.