The Copele "free Range" line of feeders and water drinkers is designed with open air pasture and free range farming in mind. This large capacity (45 litre / 12 gallon) drinker silo is made of BPA free plastic, and includes UV protection for the plastic. Easily filled through a fill-cap on the cover, which is also easily opened up for convenient cleaning and disinfection. Assembled and disassembled easily without any tools.