PROBLEM TO BE SOLVED: To provide connected containers capable of more uniformly filling storage parts of a plurality of unit containers with liquid than the conventional one, and a method for manufacturing the connected containers.SOLUTION: Connected containers 100 are formed by connecting a plurality of unit containers 10 each having a storage part 11 for storing liquid L. The connected containers 100 include: a first spare chamber 20 having a liquid filling port 21 and connected to one end in the connection direction of the plurality of unit containers 10 a second spare chamber 30 including a gas exhaust port 31 and connected to the other end in the connection direction of the plurality of unit containers 10 a liquid passage 40 for communicating the first spare chamber 20, bottoms of the plurality of storage parts 11, and the second spare chamber 30 with one another and a gas passage 50 for communicating the first spare chamber 20, upper portions of the plurality of storage parts 11, and the second spare chamber 30 with one another.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】複数の単容器の収容部に従来よりも均一に液体を充填することが可能な連結容器及びその製造方法を提供する。【解決手段】液体Lを収容する収容部11を有する単容器10が複数連結された連結容器100である。連結容器100は、液体充填口21を有し複数の単容器10の連結方向の一端に連結された第1予備室20と、気体排出口31を有し複数の単容器10の連結方向の他端に連結された第2予備室30と、第1予備室20と複数の収容部11の底部と第2予備室30とを連通させる液体通路40と、第1予備室20と複数の収容部11の上部と第2予備室30とを連通させる気体通路50と、を備える。【選択図】図1