Check the listing for details. 5 Pack Poultry Drinking Armed Nipples for Chicken Hen Automatic Water Drinker. Condition: New. Listed at 14.99 USD. ITEM DESCRIPTION 5 Armed Chicken nipple with Reducing Tee Schedule 40 PVC 1/2 Slip " X 1/2 Slip " X 1/8 " FPT WhiteConnect directly to PVC5 (FIVE) 1/2" PVC TEE fittings with watering nipplesTee's are for 1/2" schedule 40 PVC pipe5 Pack of armed chicken nipples with 1/2" schedule 40 PVC reducing tees with 1/8 FPT. This Style watering nipple has been used on commercial chicken farms for many years, there are many good reasons. This style of chicken waterer nipple is a 360 degree swivel nipple that simply screw in to your drilled hole. Works well for PVC pipe style or bucket style DIY waterers . Removable lower parts for easy cleaning or replacement .Will work great on gravity fed , Don't connect directly to a garden hose !! Water nipple works under low pressure ( 5 psi or less ) House water pressure can be around 60 to 80 psi, If your nipples is install to PVC / CPVC pipe and want to connect it directly to a garden hose than a water pressure regulator should be used. 1 nipple for every 3 birds.