An adjustable cable fitting with a removable grip assembly secures and retains a cable passing therethrough. The grip assembly has a flexible tightening member and a resilient grommet inserted in the tightening member. The grip assembly is further disposed between a connector and a compression cap, such that the tightening member assists the grommet in creating and maintaining a watertight seal with the cable when tightening the compression cap to the connector. The tightening member also assists the grommet in securing and retaining the cable by preventing it from being pulled out of the fitting. The tightening member has a plurality of spaced apart retaining arms. Each arm has a retaining flange at one end that overhangs past an end of the grommet and which has gripper elements formed thereon for directly gripping the cable.