window balanace

A quick learner from San Jose says:
July 11, 2017
Hi im looking for the replacement for this part in the photos. The stamp says 29 9 CX CMC 7. The string on mine broke. Thanks!
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
July 14, 2017
The measurements of your balance shoe will determine whether you will need our Series 380 or Series 385 channel balance. Take a look at those and let us know how you made out.
30" Series 380 Channel Balance
30" Series 380 Channel Balance
S380-30
$11.30
30" Series 385 Channel Balance
30" Series 385 Channel Balance
S385-30
$11.30
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