Replacement parts

A handy person from Edmonds, Wa says:
I need 4 of these. Please let me know if you carry these and if so what the lead time is for delivery in Edmonds, wa
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
We should be able to help. The balance looks like our S385-34 channel balance, but that stamp of yours gives me pause. You may need to have this balance custom made with a special strength spring. Before we do that, can you confirm the weight of your sash? I'm thinking it might be 46 pounds, but I just want to be 100% sure. Thanks!
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