replacement double hung window channell

A handy person from Ann Arbor, MI says:
December 27, 2015
This is a channell for a double hung tilt out window.

The channel measures 27"

It screws to attach to the top and has a small metal clip at the bottom of the string to attach to the window gluide. There is a block and tackle inside.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
December 29, 2015
Thanks for posting! Can you show us a clear picture of the metal clip and window guide you mentioned? That will help us determine the proper match for your channel balance.
A quick learner from Ann Arbor, MI says:
December 29, 2015
See attached
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
January 4, 2016
Thanks! Take a look at our Series 770 channel balance, this might be what you want.
Pivot Shoe, 9/16" Thick
Pivot Shoe, 9/16" Thick
15-129
$2.50
27" Series 770 Balance
27" Series 770 Balance
S770-27
$12.70
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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Anatomy of a tilt window
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