Window balancer

A handy person from Tennessee says:
December 29, 2019
I would need the whole balancer for both sides.
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Casey from SWISCO responded:
December 30, 2019

Hello,

I can't be positive about which hardware you need with your balance still installed, but it resembles our S770 channel balance. Take a look and Make sure that everything matches up. You'll also need the length of your metal channel and the stamp number on your balance to choose the correct spring strength option. 
A handy person from Tennessee says:
December 30, 2019
28 in Length and the stamp said 28c
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Casey from SWISCO responded:
December 31, 2019

Hello, yes. This looks like a S770-28 to me. The stamp option of 28C is for a window sash in the weight range of 18 through 23 lbs. Let me know if you have any other questions. Thanks!
Pivot Shoe, 9/16" Thick
Pivot Shoe, 9/16" Thick
15-129
$2.50
28" Series 770 Balance
28" Series 770 Balance
S770-28
$12.70
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