Looking for correct Pivot Shoe

A quick learner from philadelphia says:
December 9, 2015
I don't know the name of the window company. Looking for some expertise helping locate the proper pivot shoe. The depth of the window channel is 1/2". The pics show the measurements for the other sizes.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
December 10, 2015
Looks like you have an early aluminum replacement tilt window. I recommend our 15-015 new style pivot shoe, which is made for aluminum replacement windows. Just confirm that our measurements match yours.
Pivot Shoe, 17/32" Thick
Pivot Shoe, 17/32" Thick
15-015
$1.55
24" Series 600 Spiral Tilt Window Balance
24" Series 600 Spiral Tilt Window Balance
S600-24
$8.92
Pivot Bar, 3"
Pivot Bar, 3"
26-040
$1.57
Spiral Balance Charging Tool for Tilt Windows
Spiral Balance Charging Tool for Tilt Windows
75-006
$9.97
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
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