need help identifying the part

A home owner from san jose says:
see the image attached
User submitted a photo of a screen door roller.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Take a look at our 84-016 and let me know if this could work for you as a replacement.
A home owner from san jose says:
I noticed that 84-101 is very similar too, how to differentiate?
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
The metal housing and spring on the 84-101 i s made of stainless steel.
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