Channel balance

A home owner from Califirnia says:
Think it's the S351-28 ? Thanks
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Bob from SWISCO responded:

Thanks for posting. I agree the S351-28 is promising. The only other possibility is the S390-28. The difference between the Series 351 and Series 390 is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement. See the illustration below. Compare both with your old balance to see what matches best. In either case for a stamp option go with 2730.

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

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