SWISCO - The Replacement Hardware Authority

D44 7P27 2X7 Andersen Balance

A home owner from Coatesville, PA says:
I have several 38-year old Andersen windows where the sash strings are broken. I took one window apart and the boxes are stamped with the number:

D44 7P27 2X7

The boxes are 6-1/4" x 2-13/16" x 3/4"

What replacement part should I order?

Many thanks.
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Tom from SWISCO responded:
Thanks for posting. See our 24-737. This can replace Andersen balance boxes stamped with "7P27."
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