Abstract: A connector suitable for connection of at least three different types of containers to administration sets, preferably enteral administration sets, and feeding tubes. The containers contain nutritional feed for administration thereof to various types of patients who require enteral nutrition. In one aspect, the connector comprises three different segments: (a) a first segment for connecting containers having mouths having a relatively large diameter, such as, for example, plastic and glass bottles having mouths having diameters of approximately 40 mm; (b) a second segment for connecting containers having mouths having a relatively intermediate diameter, such as, for example, crown cap bottles having mouths having diameters of approximately 26 mm; and (c) a third segment for connecting containers having mouths having relatively small diameters, such as, for example, flexible pouches having mouths having diameters of approximately 12.5 mm.