Replacement Balances

A friend from Santee CA says:
August 26, 2011
I have a friend who just bought a home and 3 single hung window balance sets need to be replaced. The overall windows are 2 at 39x58 and 1 at 21x46. The balances are connected to the window with a sliding (kind of square) pin at the head of the operating sash. I do not believe these are tilt type windows.
I have attached photos...looking for complete replacement parts.
Thanks
Mark
User submitted photo channel balance attachments and stamp.
Profile picture of Mike
Mike from SWISCO responded:
August 29, 2011
Mark, thank you for submitting your photos.

Can you submit a photo or two of the other end of the balance? We will need to see the attachment in order to determine the Series.
A friend from Santee, CA says:
August 29, 2011
Here are a few more photos...sorry, the one that really shows the profile was taken on a phone camera and it ended up very small...I drew a very rough rendering. The original hardware is busted up, so the attached photos will not look like the original hardware.
My guess is the series 380.
The balances on the smaller window were completely removed (and should be a bit smaller I assume)
User submitted photo of channel balance attachment.
Profile picture of Mike
Mike from SWISCO responded:
August 31, 2011
Thank you for submitting your photos to us.

It appears your balance attachments do not quite match up to the Series 380, I believe you have our S385 balance series. Order S385-27.
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