36 Heavy Duty Slip-on PVC Fittings for Poultry Water Drinker Nipples or CupsThirty Six (36) New Aftermarket Replacement Heavy Duty Slip On PVC Fittings for Poultry Water Drinker Nipples or Cups This pack of 36 heavy duty 1 2" PVC tee fittings is designed for building or expanding a DIY poultry watering system. Each fitting uses a slip to slip connection on its open ends simply slide your 1 2" PVC pipe directly into the tee, no drilling required. The threaded outlet (1 8" FPT) accepts standard screw in poultry nipple drinkers