I am in need of 4 Balances, I would like to purchase ASAP

A home owner from Mesa Arizona says:
January 10, 2017
I have 2 windows that the balances are broken. 1 small window sash and the other is big. The window balance is 1mm less than 29in long 1/2in wide and 9/16 depth. The small window says 28 3 FS Caldwell, The large says I think because of its scratched off 38 9 ES Caldwell. Both look the same. I would like to replace all of them 4 all together.

Please help me select the correct balances.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
January 17, 2017
Please see our Series 385 channel balance, I think this may work for you.
29" Series 385 Channel Balance
29" Series 385 Channel Balance
S385-29
$11.10
39" Series 385 Channel Balance
39" Series 385 Channel Balance
S385-39
$13.87
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