Channel balance identification

A quick learner from USA says:
December 15, 2015
As requested, I am sending you photos of the channel balance that I need to replace.
The markings on the channel balance can be seen in one of the photos- they are UB 28D.
Please advise as to what item I should order from your catalogue.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
December 17, 2015
This balance seems to resemble our S380-30 channel balance, which comes with our 15-005 and 19-005 pre-attached. Look it over and tell me if you agree.
29" Series 380 Channel Balance
29" Series 380 Channel Balance
S380-29
$11.10
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