This gravity-feed Hen Hydrator provides access to clean water on demand. The translucent bucket was designed to provide UV protection to prevent algae growth and allow for easy viewing of the water level. Lid fits tightly to prevent spills and protects contents while easy-to-remove fill plug allows for refilling without having to remove the entire lid. Each of the 4 nipples can accommodate up to 4 birds. Hanging height will vary by breed but should be high enough so that chickens must reach up slightly to drink. This waterer is recommended for adult birds only and is not recommend for use in freezing weather. For best results remove all other water sources, and tap each nipple so chickens can see water dripping. Acceptance of this watering method may take time but once a few birds begin to use it, others should follow. Little Giant is a family brand of Miller Manufacturing Company.