Carefree window parts. Balance kit

A quick learner from St. Louis Mo. says:
July 10, 2018
I need 4 -31" long 3/8"wide balance rods
And. 4-29" long 3/8" wide balance rods

They do not have a color tip butt the sliders
have a red insert. The end that connects to
the sliders have 4 studs on them 2 on each
side 1/2" apart protruding out about 1/8".
The windows are 21 years old.
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Tom from SWISCO responded:
July 12, 2018

If you have 3/8" tubes for tilt windows, choose S900-29 and S900-31. As for the tip color, you'll have to weigh the sash and consult our site. Each item has a chart on the site with the right tip colors listed.
29" Series 900 Spiral Balance
29" Series 900 Spiral Balance
S900-29
$9.15
31" Series 900 Spiral Balance
31" Series 900 Spiral Balance
S900-31
$9.35
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
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