Bob from SWISCO responded:
November 12, 2023
Hello there. See our S351-25 or S390-25 Channel Balances. The only difference between these two balances is the depth of the bottom nylon shoe, or the measurement from 'heel' to 'toe', so compare both with your old hardware to see what matches best. See the illustration below for reference. In either case for a new stamp option choose 2430. Comparison of the S351 and S390 balance shoes.
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