An ISO 80369-3 compatible coupling having at least one vent, recessed groove, non-cylindrical geometry and/or textured surface formed therewith. According to one example embodiment, a vent can be formed on a male coupling and/or a female coupling. The vent can be in the form of recessed channel. According to one example embodiment, the coupling comprises non-cylindrical geometry such that at least one vent is provided.