Channel Balance for single hung window

A contractor from South Lyon MI says:
Need balance unit for single hung window.. Window dimensionActual sash size is 33.5" x 29".
User submitted a photo of window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for contacting us. I'm afraid I cannot identify what you need based on this picture. We would need you to remove the balance from the window and take pictures of the part itself. Specifically, we would need to see both ends and the stamp printed on the channel. In the meantime, I recommend that you look at our Channel Balance Home Page and follow the steps in order to find the Series that best matches what you have.
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