Neck apparatus and closure system for a multi-compartment bottle

A closure system adapted to be operably engaged with a bottle having a body defining multiple compartments for containing an amount of a respective liquid, said system comprising:

• a neck finish operably engaged with the body and having an outer surface defining an opening for and in communication with each respective compartment, each opening being adapted to allow dispensing of the respective liquid therethrough, the outer surface of the neck finish defining a substantially circular threaded outer periphery, the outer surface of the neck finish above the outer periphery threads being generally planar and defining a groove configured to extend laterally between the openings so as to separate the outer surface into discrete portions, with each portion defining one of the openings and the portions being arranged so as to collectively define the outer periphery, to prevent the liquid dispensed from one opening from entering another opening;
• a plug for and configured to be separably engageable with each respective opening;
• and
• a cap configured to be complementarily threaded with respect to the threaded outer periphery of the neck finish such that threaded engagement of the cup with the neck finish secures the plugs in engagement with the respective openings and prevent dispensing of the liquid through the openings.