Sliding glass patio door

A home owner from San Diego California says:
Need to replace the roller and this is the picture the #in the old part are 41781
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Tom from SWISCO responded:

It's tough to tell from this photo, but I think I spy too little hooks on the top of the housing there. If I'm right, then you should consider our 81-125 as a possible replacement for your original roller. Look it over and let me know what you think.

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