We are excited to announce the release of the Trojan Pen Waterer for sheep, lambs, goats, calves, exotics and zoos. This waterer has the same features as the Trojan 2.5 waterer for swine however this unit features a rubber nipple. If you have worked with the 2.5 Gallon pen waterer in the past, you know that it's incredibly easy to install. Simply use zip ties to secure it to a pen. This makes this unit perfect for shows or if you are transporting your animals. The valve wi