ANSI/AAMA 101-88 Window Won't Stay open

A quick learner from Plantation, FL says:
February 26, 2018
I have an ANSI/AAMA 101-88 Window that does not stay open. My Contractor says I need the things that hold up the window replaced.

Please let me know if you have them, how much and eta.

Thank you,

Brett
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
March 1, 2018
Your contractor is right: if the window won't stay open, the problem is likely the balance. Based on yoru pictures, our S377-12 channel balance with a 1110 option appears to be what you need. Compare your balance against ours to confirm this is a match.
12" Series 377 Channel Balance
12" Series 377 Channel Balance
S377-12
$9.34
Top Sash Guide Pair, Pan Am
Top Sash Guide Pair, Pan Am
18-042
$1.97
Pan Am Take Out Clip
Pan Am Take Out Clip
16-023
$1.17
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