This is a replacement roller for the row patio door, similar to your 81-287 , it worked perfectly but now my sales rep quit and the company he worked for doesn't seem to know where he got them Any help would be appreciated
Bob from SWISCO responded:
November 17, 2020
The 81-287 is indeed our closest match, as it appears to have the same housing. However, it only has a single wheel, whereas yours is a tandem roller. I suspect this tandem version is no longer available. See if you can use the 81-287 instead. Let me know what you think.