Sash balance for andersen dh window

A handy person from Walkersville, MD says:
Good morning: Swisco, Thanks to Mike and the video I decidesd to replace the broken sash balance with limp cord. The existng pancake unit is in a Andersen DH window, left side, has the this ID: H2 6#27 7-87 Also 11600 17 stamped on oppposite side The unit measures approx 2-15/16 x 6-1/4 (plus flanges) x 3/4".

I suspect it is a 627 unit manufactured 7-87 but not sure.

Thanks so much Jim
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Mike from SWISCO responded:
Hey, Jim! Glad our video was able to help you. As for this balance, I think you might want to consider our 24-637. This can replace a balance box with the stamp 6#27.
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