Automatic Poultry Drinker Nipples, Pack of 12

Poultry (chicken) drinking nipples Self-sealing tapered thread for 1/8" thread or 1/2" pipe Or drill a hole of about 5/16", no more than 3/8" Push in or screw in Working pressure: 50 cm (0.71 psi) Automatic filling possible by adding a float valve to a gravity system In the box: 12 nipples