Replacement balnces

A home owner from Columbus ohio says:
My balances are 2330 markings, your 2330 looks great ,but my tops look different then yours, mine look they have more of a flat guide on the top for left right balance, please advise me after this should work thank you sincerely Rick,
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Jasmine from SWISCO responded:

Thanks for posting! You have either the S380-24 with a 1" shoe or the S385-24 with a 1-3/32" shoe. To determine which series is needed for your window, look over the dimensions from the diagram below to confirm the depth of your bottom shoe. Let me know if it does not match either measurement.

You'll need to select the 2330 stamp.

Comparison of the S380 and S385 balance shoes.
Comparison of the S380 and S385 balance shoes.

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