Window Balance Coil Part ID

Quick Learner
Attached are photos of the current broken coil window balances installed. I need help identifying the proper replacement parts. The only identifying marks are "6R" on both sides. The parts inside the window sash are approximately 17/32"- 9/16" deep.
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Lauren
Lauren from SWISCO
SWISCO
Expert

Hello, thank you for posting! 

Your balance resembles an older version of our S140-6. Please compare the dimensions below for a good fit! 

Swisco.com
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