Replace or repair these spring balances

Quick Learner
I have 27 yr old single hung vinyl windows that have mail functioning spring balances. Do you have these parts and can you tell me how to install them?
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2 Replies
Tom
Tom from SWISCO
SWISCO
Expert

Hello! This looks like it could be a typical tilt window spiral balance. If so, you only have two options: either our 3/8" diameter Series 900 or the 9/16" diameter Series 600. You need to measure the diameter of the tube on your original to verify the best match.

As for installation instructions, I'll share those below.

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