Patio Glass Door Single Wheel Rollers inquiry

Thanks for posting. Our 81-011 has the same width and height as the 81-044, and its back end looks closer to your old roller, so this might work. But this is just an educated guess. The only reliable way to identify sliding glass door rollers is to remove the old one for inspection. Clearly yours are pretty rusted. Are you unable to remove them? I advise soaking them in WD-40 over a period of days to see if the adjustment screw will loosen so you can get them out. We do not sell bottom frame panels for sliding glass doors, just the rollers, so this step will be critical anyway for replacement. If yo can send us a picture of the extracted roller, and do your best to measure the width and height of the assembly and wheel diameter, we can at least confirm if the 81-011 is correct, or if something else could work for you.