Patent ID: 8672365

Claim:
A coupling for connection to an end of a tube, the tube having an outer diameter, and the coupling comprising: a generally tubular body having a channel therethrough extending into the body from an open end towards an abutment surface, the body having a guide surface disposed between the open end and the abutment surface, and the channel having a generally annular groove formed as a step therein between the abutment surface and the guide surface, and the groove having an end wall defining the abutment surface; a locking member for locking the tube end in the channel upon the tube end being received coaxially in the open end of the channel; and a generally annular seal member received in the groove, wherein with the tube end being received coaxially into the channel, the tube end is moveable through the channel into an abutting engagement with the abutment surface with the tube outer diameter being supported by the guide surface and the seal member being received in a sealing engagement with the tube over the tube outer diameter.