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This 1.5" diameter pipe is the largest Bird Butler with the variable valve. Its 12" pipe and 14 oz. capacity, it is ideal for several birds in a single cage, or when you just feel better having plenty of water for a long weekend!
See our FAQs for instructions on cleaning the variable valve.
The flow-rate of water from the valve can be adjusted by twisting the valve cap clockwise to decrease flow or counter-clockwise to increase the flow-rate.