Help replacing a Caldwell balance for vinyl window

A landlord from Costa Mesa, CA says:
Hello
I am trying to replace a sash balance for a replacement vinyl window. The old balance is missing. I pulled a balance from another window in the same house that is a different size.
The window that I am trying to replace the balance
14 pounds, glass 13"
The window that I pulled a balance from is stamped on it 22 BP Caldwell
Thank YOu
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Tom from SWISCO responded:

Thanks for your patience in this matter. For your sash with a 13" glass, we recommend our S385-13. However since you have a 14 pound sash, it will have to be a special order. I just need to confirm the availability of the spring strength rating you need.

In the meantime, can you confirm that you only need 2, or did you need more?

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Tom from SWISCO responded:

Just letting you know that we have everything we need to get started! I'm ready to send you an order link and price quote, I just needed to confirm how many you need.

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