These Dome Drinkers are supplied pre-assembled and are simple to use. They are very easy to maintain and comes with a clear valve system on top of the Dome Drinker, allowing you to see and correct any possible blockages. They have a central inlet for all round water balance and even flow. The black base area has a textured finish for extra grip, making the Dome Drinker ideal for young birds. Suitable for all types of poultry & game birds.