Need to replace balance spring assemblies Please Help!

A home owner from USA says:
March 14, 2016
The balance spring assembly is 35 1/8" long from metal edge to metal edge. It comes from a NuAir single hung window unit. The window itself is 50 1/2" wide. We need to replace both sides, both assemblies. Imprinted on the assembly metal is 34DS HG 48L. Please take a look at the attached photos and let us know if you can help. Thank you... Dean
User submitted photos of a window balance.
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Tom from SWISCO responded:
March 16, 2016
Thanks for contacting us, Dean. We can make this balance, but it will have to be custom made. Before we begin, can you just tell me how many you need? Once I know that I can send you a custom order form and price quote.
A quick learner from Brooksville, FL says:
March 17, 2016
We need two assemblies. It is a pretty heavy window which is why I think the original assemblies broke down. So you can. Ske the full assemblies with springs and string?
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Tom from SWISCO responded:
March 18, 2016
Great, thanks I've emailed you a custom order form and price quote. Our balances come fully assembled and ready to install out of the box.
35" Series 390 Channel Balance
35" Series 390 Channel Balance
S390-35
$12.05
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