35" Channel Balance

A quick learner from Yulee, FL says:
Please help me identify me channel balance. It has 34 9 stamped into it. Dimensions are 35" x 1/2".

Thanks!
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Bob from SWISCO responded:

See our S38-35 or S385-35. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement, so compare both with your old hardware to see what matches best. For a new stamp option, you'll need to obtain the exact weight of the window sash. You can then match that exact weight with one of the weight ranges listed alongside each stamp option on the balance shop page.

S380vsS385
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