Need window channel balance help

A quick learner from Orlando Florida says:
October 29, 2017
Need help determining what channel balance i need. The length is 29 inches measuring only the aluminum as described in your video. Just not sure of the end pieces. See the attached photos.

Thank you,
Deborah
Channel Balance
Profile picture of Paul
Paul from SWISCO responded:
November 2, 2017
Check the depth of your USB side-load balance shoe. I believe it is 1". If so, use the S380-29 balance. The spring weight for "28C" is our "2830," for a sash weight between 16 and 23 lbs. If your shoe is not 1", let me know.
Alternate view of 15-005
Alternate view of 15-005
A quick learner from Orlando, FL says:
November 2, 2017
The depth is not quite 1". about 7/8". The other measurements are as your diagram shows. Is the 7/8" close enough?
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Tom from SWISCO responded:
November 6, 2017
I think that should be fine. It probably wore down a little over time and constant use. Even if it was originally 7/8", you can always shave the new shoe down a little if necessary.
Winged Channel Balance Shoe, 1" Depth
Winged Channel Balance Shoe, 1" Depth
15-005
$0.74
29" Series 380 Channel Balance
29" Series 380 Channel Balance
S380-29
$11.10
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