Channel balance

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.