Abstract: The present disclosure relates to a container and a coupler adapted to receive and connect with the container. The coupler comprises a body that defines an internal passage adapted to deliver fluid to an interior space of the container, and a supply passage that is in fluid communication with the internal passage such that fluid can be delivered to the internal passage through the supply passage, and a locking member that is adapted to engage a locking groove of the container so as to securely hold the container in place within the coupler.