I ordered Captitol roller
81-011. I just realized, I need the concave wheel on the door roller. Is there equivalent of
81-011 with concave wheel, or can I order only the wheel and replace the flat wheel to be concave? I see item
81-090, but I am not sure if the notch on the top of the housing's side will make it compatible with my door frame.
Can you please advise?