23" window balance

A handy person from Oregon says:
November 23, 2016
Hi.. can you please help me identify this part ?

The channel length is 23", but there are no markings on the side at all.
User submitted photos of a window balance.
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Tom from SWISCO responded:
November 23, 2016
Sure, I'm confident we can help. Start by looking at our S385-24. This comes with the 19-005 top and 15-004 bottom, so it's important to double check that these match what's installed on your balance now.
A quick learner from Oregon says:
November 25, 2016
I found some faint markings on it..

Caldwell 22 4 FN

can you please tell me what the proper replacement balance ?

thanks..

jeff
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Tom from SWISCO responded:
November 29, 2016
I'm afraid that's not a part number. The only thing that stamp tells us is the strength of the spring. Using that stamp as a reference, I'd recommend the 2240 option. The only way to confirm if the S385-24 can work for you is to compare the hardware I mentioned to what you have now. That's the only way to know for sure.
Channel Balance Top, Winged
Channel Balance Top, Winged
19-005
$0.74
Winged Channel Balance Shoe, 1-3/32" Depth
Winged Channel Balance Shoe, 1-3/32" Depth
15-004
$0.74
23" Series 385 Channel Balance
23" Series 385 Channel Balance
S385-23
$9.59
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