Window parts

A quick learner says:
March 21, 2017
Only identifying mark on it is :10. R
User submitted a photo of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
March 27, 2017
Thanks for posting! I'm a little confused. You say the only marking is "10R," but your picture shows "8L." Can you clarify? I would recommend our S140-10 for the former, and S140-8 for the latter.
8 lb Series 140 Quick-Tilt, Single
8 lb Series 140 Quick-Tilt, Single
S140-08
$8.28
10 lb Series 140 Quick-Tilt, Single
10 lb Series 140 Quick-Tilt, Single
S140-10
$9.85
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