Please advise on the model??

Quick Learner from California
Not sure how I can translate the stamps on my window balances to your equivalent models from the attached photos.
Also, I have more than a handful of windows that are difficult to pull up and down. Balances are sometimes not going with the sashes when I pull them. Not sure what the potential causes are.

Please help!

TD.
User submitted photos of a window balance.
2 Replies
Tom
Tom from SWISCO
SWISCO
Expert
We believe you may need our S385-22 channel balance. The stamped marking of 21 2 will correlate to our 2120 option.
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