Abstract: A transportable container for a medical specimen, preferably in the form of a Coplin jar. The container includes a jar molded from a thermoplastic material having an open top, with the lid hingedly coupled to the top of the jar for movement between open and closed positions. The top of the jar includes a rim projecting upwardly therefrom, with the lid having a recessed inside surface including a sealing ring therein shaped like the projecting rim. The sealing ring contacts the rim and seals thereagainst when the lid is closed. A snap lock latch is coupled to the lid and releaseably snap locks to a keeper on the jar to positively lock the lid to the jar to prevent leaks. The container can be used with a kit which includes a tray which receives the container in sideways fashion only.