4 Widow channel balance and 4 channel balance guides

A home owner from West Palm Beach says:
Ther steel channel measures 30 inches without the nylon feet. The only numbers I can find are stamped on the channel 29 3 H I.
Thanks for your help.
Denny
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting. Would you be able to show me a picture of the bottom nylon shoe of your balance? You only shoe the top attachment. Can you also give me the dimensions of your top sash guide?
A home owner from Florida says:
I would be happy to give you the dimensions of my top sash guide. What is it?
Thanks
channel balance
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Tom from SWISCO responded:
Thank you. For the balance, start by looking at our Series 350 channel balance. This comes with the 19-002 top and 15-004 bottom. As long as those match up to your nylon caps I think you'll be okay.

Without knowing the dimensions of your top sash guide, I cannot be sure what to recommend. You may want to start by looking through our selection here. At the very least, you should get a better idea of what kind of information we need.
A home owner from Florida says:
Tom,
If you give me an idea of what the top sash guide is. Im sure I can get you the dimensions.
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Tom from SWISCO responded:
The top sash guide is the other part you're looking for. It's the black piece in the second and third pictures in your first post.
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