Check the listing for details. 10 Pack Armed Chicken Nipples for Automatic Bucket Watering. Condition: New. Listed at 16.75 USD. ITEM DESCRIPTION 10 Armed Chicken nipple with o-ring and wing nutConnect directly into the side of a bucketInstall on the side of any bucket about 1 inch from the bottom.Drill a 5/16” holeNipple needs to hang straight down10 Pack of armed chicken nipples with O-ring and wing nut. Threads on the armed nipple is 1/8 MPT. 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.