Replacing old Window Balance

A contractor from milford,ct says:
October 8, 2017
Please help me decide which would be the best/closest choice to replace old balance.
I have sent 5 of the 7 pictures I currently have ,but if you need other shots and dimensions I can take & send as many as you need . This is the first of what could become many balance replacements on this particular house. The original plastic
sheathing is missing due to disintegration.

Richard
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
October 13, 2017
Thanks for posting! For your old wood windows, I recommend our Series 500 spiral balance along with a bracket like our 17-012. We've used this setup to repair windows like yours since the 1940's. Look them over and see what you think.
24" Series 500 Spiral Balance
24" Series 500 Spiral Balance
S500-24
$9.02
Bracket, #32
Bracket, #32
17-012
$1.20
Spiral Balance Charging Tool for Non-tilt Windows
Spiral Balance Charging Tool for Non-tilt Windows
75-005
$12.10
#8 x 1" SS Philips Pan Head Screw
#8 x 1" SS Philips Pan Head Screw
33-017
$0.21
#8 x 3/4" Philips Pan Head SS Screw
#8 x 3/4" Philips Pan Head SS Screw
33-090
$0.27
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
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How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
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How to adjust a spiral balance on a non-tilt window
How to adjust a spiral balance on a non-tilt window
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