Abstract: An assembly for adjusting the vertical height of a pipe in an animal waterer includes a bracket for securing the assembly to pen gating and a locking portion for locking the pipe at a particular height. The bracket includes a plurality of retaining loops having an arch portion with a pin protruding inwardly therefrom. The locking portion, having a locked position and an unlocked position, urges the pipe to engage the pins of the retaining loops in the locked position. In the unlocked position, the locking portion allows the pipe to move away from the pins so that the pipe may slide for height adjustment.