Sagging upper sash- window brake mechanism

A quick learner from California says:
December 28, 2017
Trying to fix sagging upper sash in vinyl windows. These parts have a cord that connects to them. But they don
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
January 5, 2018
You are showing the 15-014 knife lock shoes. The shoe is connected to a ribbed channel balance, the Series 751 balance. You need the metal channel length and spring weight stamped on the channel in order to place an order.
Balance knife lock Shoe
Balance knife lock Shoe
15-014
$1.09
14" Series 751 Channel Balance
14" Series 751 Channel Balance
S751-14
$10.18
How to install a ribbed tilt channel balance with knife lock shoe
How to install a ribbed tilt channel balance with knife lock shoe
VIDEO
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Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
GUIDE
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