Balance identification requested

A home owner from 78759 says:
May 3, 2022
This is for a non tilt window. The balance has completely come apart, but I was hoping to get an identification before odering. It's 9/16" wide and 28in long.
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Emily from SWISCO responded:
May 5, 2022

Hello!

It appears you could have either our S351-28 or S390-28 channel balance, depending on the depth of your bottom shoe. These balances look almost identical at first glance but each has a different shoe depth. The Series 351 comes attached with a 1" deep shoe and the Series 390 comes with a 1-1/8" shoe. See the image below to determine which one matches up best. You will also need the 2730 spring strength option based on your 27C stamp.

Let me know if you have any questions!

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.
28" Series 351 Channel Balance
28" Series 351 Channel Balance
S351-28
$10.97
28" Series 390 Channel Balance
28" Series 390 Channel Balance
S390-28
$10.97
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