window sashing balance replacement

A quick learner from mn says:
need a match
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Bob from SWISCO responded:

This appears to be a 21" Series 751 balance, stamped 20HD. However, your balance might use the 15-197 Knife Shoe, rather than the kind of shoe that comes attached to this balance by default (our 15-014). Please remove and compare to confirm. If your balances do use the 15-197, we can provide this, but the balances have to be custom built due to this unique design. We can do this for you no problem; I just need to know how many balances you need. From there I can draft a quote for you. 

19-029 : Short S-Clip
Short S-Clip
19-029
$0.35
VIEW >
19-030 : Long S-Clip
Long S-Clip
19-030
$0.44
VIEW >
S751-21 : 21
21" Series 751 Channel Balance
S751-21
$10.15
VIEW >
15-197 : Black Locking Terminal, Great Lakes
Black Locking Terminal, Great Lakes
15-197
$2.04
VIEW >
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
WATCH >
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