A conduit coupling assembly facilitates connection of liquid-tight tubing with a conduit section through which associated electrical wiring and/or cables are routed. The assembly includes a transition coupling, which is joined to male and female, liquid-tight connectors. The coupling assembly is joined to the conduit and projects above an associated concrete slab or the like to position the liquid-tight connectors for efficiently joining associated liquid-tight tubing to the conduit. The conduit coupling assembly thus particularly facilitates routing of wiring from a conduit section positioned within a concrete slab or like flooring element, through the transition coupling, and the liquid-tight connectors.