My balance is stamped 25 4 BQ

A home owner from Minneapolis, MN says:
Hello, I need two each balances. The numbers and letters on the one that is broken is 25 4 BQ. I believe it is your series 380 from the pictures on your website. Anyway, could you determine what I need from the numbers and letters I gave you? Thanks in advance for your help.
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Paul Sr. from SWISCO responded:
The replacement window balance you need is the Series 380, 26" balance with the stamp option of 2540.
A home owner from Minneapolis, MN says:
You guys are awesome, the best example of on line advice, ordering, checking out and help I have ever experienced. The balances fit perfect, I followed your instructions, and all is well. Thanks a lot, and I will use you in the future. I have a few other of the same windows which are wearing out and not performing so well anymore. Congratulations to whoever set up your site.
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