Coil balance?

A home owner from Irving Tx says:
March 6, 2019
Hello, can you help me find this part. I think its for ply gem windows but i dont know the models and i think the name for them is coil balance. Ill be wanting for a fast responce. Thank you.
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Bob from SWISCO responded:
March 8, 2019

Thanks for posting. The housing looks like our 15-102 Double Side Load Carrier. This is compatible with Coil 145 Balance Springs, which are sold separately. Let us know if you have any questions.
Double Side Load Carrier
Double Side Load Carrier
15-102
$2.65
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