Channel sliders

Thanks for writing in. This looks like either our S351-28 or S390-28 channel balance. The only difference between these two types of balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement. See the diagram below for reference. Compare both with your old hardware to see what matches best.

Comparison of the S351 and S390 balance shoes.

In either case you'll need to choose a new stamp option, which designates the strength of the balance. Use 2730, in accordance with your old balance's stamp.