One of our top sellers, the auto stall waterers have many outstanding features. They can mount on stall walls; there is a removable drain plug for easy cleaning; and they’re made of heavy-duty polyethylene. As well, the wall is filled with extra urethane insulation, the edges are rounded for safety; and there is an adjustable height drinker. The heater turns on at 42 degrees/ off at 52 degrees, and the waterer measures 12” x 14” x 41”.