Wild-us 12pcs Poultry Water Nipples Drinkers Sanitary Water for Chickens, Turkeys, Geese or Ducks,Chicken Water Feeder NEW, push in design for 3/4" round pipe, leak free!! No caulk or tape needed, simply drill a 5/16" hole in your pipe and snap in place. (Must mount vertically) easy to install and use