Replacement plug for use with Camco RV Grab Handle

The plug in the ends of the tube of the Camco Grab Handle on our trailer deteriorated with age with fins breaking off and eventually no longer staying seated in the tube.  The family didn't appreciate the bee/wasp that was trying to setup home in there so I generated this plug and printed in TPU to solve that problem.  

The images show the original (broken) part on the left and the newly printed one on the right.   

With the angled ribs the fit is tight and does not come out.