Window spring balances

Home Owner from Pleasant Hill, CA
Hello,

I need help identifying the window spring balances to replace for my bathroom and hallway windows. Each window has a vertical sash that slides up and down directly. The length of the spring balances for the bathroom window is 18 inches, and they have the stamped number 2330. The length of the spring balances for the hallway windows is 24 inches and they have the stamped number 1710. I've attached photos of a spring balance removed from the windows. Please let me know if I need to provide more information to correctly identify the replacements. Thanks in advance.
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2 Replies
Tom
Tom from SWISCO
SWISCO
Expert

Thanks for your photos. Based on what I see here, you have either our Series 351 or Series 390, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

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