Non tilt window bars

A contractor from Peoria Az says:
February 7, 2023
I measured the existing bar and the measurement is 29".

The numbers on the bar are 28 4 FQ Caldwell.

I need two of the proper bars
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Emily from SWISCO responded:
February 8, 2023

Hello!

It appears you have our S351-29 or S390-29 channel balance. The crucial difference between them is the depth of the bottom shoe as shown in the image below. You'll need to measure the depth of yours to see which Series is best for you. You will also need the 2840 spring strength option. 

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.
29" Series 351 Channel Balance
29" Series 351 Channel Balance
S351-29
$11.10
29" Series 390 Channel Balance
29" Series 390 Channel Balance
S390-29
$11.10
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