Anderson Window Balance

A quick learner from Leonardtown, MD says:
October 22, 2016
I have Anderson double hung windows, the house was built in 1986 the numbers on the window balance are 11600-17 and D51 7#27 3-86 the window glass size is 32 3/8 X 19 7/8 can you recommend a replacement balance?

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Paul from SWISCO responded:
October 25, 2016
Take a look at our 24-737 Andersen sash balance. This can replace balance boxes stamped with "7#27."
Andersen Sash Balance, 725, 727, 731, 737
Andersen Sash Balance, 725, 727, 731, 737
24-737
$54.20
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