Coupler for Use in a Closed Transfer System

A coupler for use in a closed transfer system configured to selectively engage a container seated in fluid communication with the coupler, the coupler comprising:

• a body with an axial slot;
• an outlet;
• a probe that extends from a first end portion to a second end portion and at least partially received within the body, the probe configured to be movable relative to the body between a first position and a second position to selectively control the flow of fluid through the outlet;
• and
• a handle coupled to the probe and configured to interface with the axial slot, wherein the handle is configured to move axially along the axial slot to move the probe between the first position and the second position.