Abstract: A system for dispensing a selected amount of liquid from apparatus such as a service station gasoline pump. Low pressure air is directed through air passages in response to valve means carried by the pump indicator dials. The amount desired to be dispensed is entered into the system through a selector valve means, which allows air to actuate the hose nozzle automatic cut-off device when the desired amount, or an amount slightly less than the desired amount, has been dispensed.