2730 BSI window channel

A home owner from Del Valle TX says:
Please help me to identify the right channel balance for my window.
Specs: Builder firstsource 28" 2730 BSI.
I think it is Series 385 channel.
Thank you,
User submitted photo of their channel balance.
Profile picture of Mike
Mike from SWISCO responded:
Thanks for posting and submitting your photos to us.

It looks similar to the Series 385, but not quite. You need to order our S395-28 window balance with the 2730 option.
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