Searching for 04789 side load channel balance

A quick learner says:
I need to order Milestone single hung series 1000 win 04789 side load channel balance
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Casey from SWISCO responded:

Hello,

We'd be happy to look into this for you but we would need to see photos of your balance assembly removed from the window, including both end fittings and the stamp code on the metal channel, to research your replacement options. Thank you. 

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