Rapid-connect coupler and receptacle having anti-rotation feature

A coupler for connecting a tank to a receptacle, the coupler comprising:

• a housing;
• a probe configured to translate longitudinally within the housing;
• a handle assembly configured to cause the probe to translate within the housing, wherein the handle assembly is movable between a decoupled position for disconnecting the tank from the receptacle, a coupled position for connecting the tank to the receptacle, and a venting position for venting fluid;
• a ball cage;
• a plurality of balls disposed in the ball cage;
• and
• a slidable sleeve coupled to the probe and configured to translate longitudinally with the probe, wherein the slidable sleeve includes:
• a coupling end;
• and
• a collar adjacent to the coupling end, wherein the collar includes an outer surface and a back end, wherein the collar defines a plurality of channels that are positioned radially about and extend axially along the outer surface, wherein the plurality of channels of the collar are configured to receive bearings of the receptacle in the coupled position and the venting position to prevent rotation of the coupler relative to the receptacle;
• wherein, to couple the coupler to the receptacle, the slidable sleeve is configured to slide in a longitudinal direction into the receptacle to cause the plurality of channels to receive the bearings of the receptacle and subsequently cause the plurality of balls to lock the coupler to the receptacle.