SWISCO - The Replacement Hardware Authority

Which Spring to order

A quick learner from California says:
Hi - I'm in need of window channel balances for two different windows, and have identified I need of 33" Series 385. I just want to confirm the spring. Written on one window's balance is "Unique 32-C030" Is this a 3230 spring? Also, the second window has stamped "32C USB" - Is this a 3230 spring as well?
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Paul from SWISCO responded:
Yes, I think our 3230 may be what you want. A stamp of "32-C" is usually a match. That said, you may want to weigh your sash just to be sure. We have a chart on the S385-33 store page that tells you how much weight each option can support.
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