Searching for Coil Balance She

A quick learner says:

Back of the part I need. Do these numbers I sent give information about the spring strength.

55177

Thanks

John

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Bob from SWISCO responded:

Thanks for writing in. See our 15-192 Coil balance shoe. This shoe is compatible with our Series 170 and Series 171 Coil Balance springs; the Series 171 is used if you have a second spring atop the first one. There should be numbers on the springs that identify what spring weight you need for each coil. If there are none, or you are uncertain, weigh your window sash. Give us that exact weight and we'll work out what you need.

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