Window Balance part identifier

A home owner from Metuchen,NJ says:
The markings on the part is 2130 the part is 23 inches similar to the 28 inch version the window is 32 x 20 for the whole window is Is 32 x 48
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Paul from SWISCO responded:

Thanks for posting. It looks like you have a Graham window. With that in mind, I recommend either our S351-22 (1" deep) or S390-22 (1-1/8" deep) depending on the size of the bottom shoe. No matter what you go with, the stamp option should be 2130.

Comparison of 15-001&15-002
A home owner from Metuchen,NJ says:
Can I acquire the item through swisco
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Paul from SWISCO responded:

Yes, the product links I posted in my last message are from our website. Choose a balance and click the link to place your order online.

18-122 : 5/8
5/8" Top Sash Guide, Graham
18-122
$4.30
VIEW >
S351-22 : 22
22" Series 351 Channel Balance
S351-22
$9.53
VIEW >
S390-22 : 22
22" Series 390 Channel Balance
S390-22
$9.22
VIEW >
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