bonneville window balance 11/10 34-D-40

A contractor from 6 Lakeside Lane, Durham, NC says:
I installed 30 bonneville gold series dbl hung windows. My trim guy shot thru most of the balances putting up the casing!
Do you have replacement balances? The balance is marked 11/10- unique 34-d-40.I also have a picture if that helps
User submitted picture of channel balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Chris! These pictures are very helpful. I think you should take a look at our Series 751 channel balance. Does this look about right to you? Please examine the available length options to find the one that would work for you.

You might also want to look at our tutorial video on the best method of installing this balance:
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