The Best Fully Automatic Water in the market today with no pecking at a nipple before releasing the water is required, when the water level gets low the cups refill automatically according to the amount of water in the bowl providing a constant supply of fresh and clean water. The drinking bowl is designed with a LARGE CUP compare to other sizes (see image). With approx 3 inches in cup diameter, these bowls are suitable for all poultry, chicken, ducks, geese, turkeys, and other birds, bringing you much convenience, and easy to apply without complex tools. They are reliable, durable, and sturdy, no-leakage, safe for you to use. Made of POM and 304 stainless spring, not easy to break or deform compared to other styles in the market. Unlike the peck type waterers that get damage, this model will last for a long time since it no longer has a nipple or valve part that can be pull-out over a period of usage. It's simple to clean, the water control valve is inside, there is no blockage in the bowl, making it easier to clean. PVC Tee fittings with 1/8" threads is included and can be used with low-pressure 1/2" PVC pipe.