REPLACEMENT BALANCE

A handy person from Ohio says:
Channel is 5/8 deep and 9/16 wide. Only marking are 2930 BSI TP (see picture)
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Emily from SWISCO responded:

Hi there!

It looks like you have either our S351-30, with a 15-002 bottom attachment, or S390-30, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 2930 spring strength option. If you have any questions just let us know!

s390vsS351
S351-30 : 30
30" Series 351 Channel Balance
S351-30
$11.08
VIEW >
S390-30 : 30
30" Series 390 Channel Balance
S390-30
$10.87
VIEW >
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