Identiy the correct top sash

A quick learner from Tampa says:
Hello,

I order 2 S800-24 : 24" Series 800 Channel Balance which seem to match the ones removed perfectly. I sadly did not realize I needed a top sash at the time of my order. Which Sash do I need? mine measures 1 inch across at the top the bottom is 5/8ths and the top to the middle of the 1 screw hole is 7/8th. There is only one screw hole not 2.
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Casey from SWISCO responded:

Hello,

We'd be happy to help but we would need to see an undamaged top sash guide removed from the window to compare to our selection here. Thank you!

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