Sliding window balance

A quick learner from Naples Florida says:

30 inch metal length

1/2 wide

29-3-W stamped on metal

Approximately 32 years old

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Tom from SWISCO responded:

Hello! Your balance looks very similar to our Series 377 at first glance. I think this may be what you want but look it over and see if you agree. Note that it has a 19-018 top and 15-005 bottom nylon fitting. As long as these match then you should be good to go.

A quick learner from Naples Florida says:
Thank you for your prompt reply I will order new slides and install
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Tom from SWISCO responded:

Awesome, thank you! We really appreciate your business.

Please let me know if we can be of any further assistance. 

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