Zoo Med Little Dripper Zoo Med's Drippers simulate natural rainfall and provide humidity for captive reptiles. The Dripper has a folding handle lid that allows you to suspend the dripper above the enclosure. Especially helpful for animals that do not readily drink standing water and instead drink "dew" from leaves (i.e. Old World Chameleons). Our drippers are available in two sizes, the one gallon "Big Dipper" and the 70oz "Little Dripper".