balance for replacement window

A quick learner from doylestown pa says:
the markings are 3400 bsi rd. window is tilt. balance is channel 9/16 in width and 9/16 deep. balance is 34 inches long
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Tom from SWISCO responded:

We can replace this balance, though it will have to be specially made. Before we begin, can you just tell me how many you need? Thank you!

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Tom from SWISCO responded:

Hello again! As we were looking into the availability of this balance, we ran into a bit of a roadblock. While you tell me how many you need, can you also tell me the weight of your sash? Please be as exact as you can. Thank you!

A quick learner from doylestown pa says:
i will need two thank you
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Tom from SWISCO responded:

Thank you! Were you able to tell me the exact weight of the sash, as well?

A quick learner from doylestown pa says:
used a bathroom scale under sash in place,. could not see how window comes out it weighs 26 lbs. i have three of this size windows' am thinking about purchasing 6 of these balances would you get back to me on price, and how to go about ordering thanks rob
A quick learner from doylestown pa says:
Did you receive my response about the weight of the sash and the amount of balances I need thank you
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Tom from SWISCO responded:

Thank you! If your sash is only 26 pounds, then I think our S770-34 channel balance with a 34C option will work fine. No need for it to be specially made like we originally thought!

How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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