Monarch Glass sliding door roller assy replacement hardware.
A quick learner from Thousand Oaks, CA says:
May 31, 2016
Do you have this part?
Tom from SWISCO responded:
June 2, 2016
Thanks for contacting us. It looks like the "spine" of your roller is rounded. Can you confirm? If so, see our 23-042. I believe this would be a good match.