Series 750 balance with 28B stamp

A quick learner from Kissimmee says:
I have a 28 inch Chanel they is broken. The stamp on it is 28b it is for a tilt window. I believe it would be your 750 series. Would you have these in stock and how long would shipping be?
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Tom from SWISCO responded:
"28B" isn't a stamp often associated with this balance. Are you certain it's our S750-28? If so, I recommend weighing the sash on a scale and referring to the chart we show on the S750-28 store page.
A quick learner says:
Here is the picture. It's stamped 28b
User submitted photos of a window balance.
User submitted photos of a window balance.
User submitted photos of a window balance.
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Tom from SWISCO responded:
That definitely reads 28B, but I can't confirm is our Series 750 is a match. Can you show us the clip or shoe at the end of the cord?
A quick learner says:
Does this picture help?
User submitted photos of window hardware.
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Tom from SWISCO responded:
We're getting there! I can see that your balance attached into a separate pivot shoe. Would you be able to show us a clear front-facing picture so we can see the clip used to connect to the pivot shoe? I recommend removing the sash entirely so we can see as much of it as possible. Seeing it from the top-down like this is a bit unclear.
A quick learner from Kissimmee says:
Does this help?
User submitted image of their window hardware.
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Tom from SWISCO responded:
Thank you, I'm glad we were able to get to the bottom of this. That should be all the information we need to get started on a custom order. Can you just tell me how many you need?
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
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