Channel balance stamp

A home owner from Los Angeles says:
I have stamp on balance 32 5 CW CMC 10
looks like 385 series on pictures, but with option I have to choose?
Thank you very much
Alex
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Tom from SWISCO responded:
If your stamp reads "32 5," then I would recommend the 3250 option for the S385-33 channel balance. I see you were looking at our S385-32, instead. If your stamp starts with "32," then the metal channel is likely 33". I would double check that to be sure.
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