Patio door tandem rollers. For a 50 year old aluminum door

Thanks for posting! I'm sorry to say that we do not carry an exact replacement match for you existing roller. Unfortunately, it has been discontinued and we have not been able to source a direct replacement for it.

We have recommended the 81-084 Sliding Door Roller as a replacement to past customers. I cannot guarantee that it will work as a replace, especially considering that it is a single wheel roller but take a look and see what you think!

Detail image of 81-084

Yes, you would be able to return it. Our return policy can be viewed here.

Please let me know if there is anything else I can assist with.

Have a great day!