Replacements needed

A quick learner from Collingswood, NJ says:
I need a left and a right coil balance for a window. I don't see a code except "5.5 35" D03 SM1". Which ones would these be?
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Lauren from SWISCO responded:

Hello, thank you for posting,

Your pivot shoe resembles the 15-111 style. Please compare the dimensions below to confirm a good fit! We also carry the 15-191 heavy duty version. 

Alternate image for 15-111
Alternate image for 15-111

To further review, are you able to confirm the thickness of the coil spring? Thank you! 

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