cox 21-717/21-767

Roller assembly is marked as above. I need 2 replacement plastic female rollers or 2 new assemblies. Do you have something that will work. This part number does not show up on your site.

I ordered four 23-081 rollers for mirror sliding door size 60x87"(bi-pass 2 doors 30x87" each)
For smoother sliding,I will try to install top rollers too. I hope bottom rollers 23-081 will support the wait of 30x87" size.