Window will not stay open

Home Owner from Danbury, CT
Window will not stay open. Strings and plastic parts broken. Need 2 long metal sash pieces with all parts. (All sash balance hardware) measures 29", has number 2830 on long piece.See photos, please advise
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Tom
Tom from SWISCO
SWISCO
Expert

Thanks for your photos. Based on what I see here, you have either our S351-29 or S390-29, 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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