Push-In StyleOasis Poultry Water Nipples, 5 Pack, Sanitary Water for up to 15 Chickens, Turkeys, Geese or Ducks A 5 pack of commercial grade poultry drinking nipples, PUSH-IN STYLE mounting PUSH-IN design uses a precision fit rubber gasket for seal - No caulk or tape needed, simply drill a 13/32" hole in your pipe or bucket and snap in place. (Must mount vertically) 5 nipples will keep a flock of up to 20 chickens or 15 turkeys well hydrated Build your own poultry watering system with ordinary hardware store parts - instructions included Fill you system from outside the coop - no more stepping in you know what first thing in the morning!! Also great for vacations, your system can easily hold several days water.