Need to replace springs balance to 2 sash

A quick learner from Greensboro NC says:

Need to replace springs balance to 2 sash

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Tom from SWISCO responded:

I think we can help with this. We don't sell this as one assembly, but we do sell the different components separately. See our 15-180 pivot shoe, Series 190 coil spring, 15-186 clip, and 15-182 bushing. Please let me know if you had any other questions.

A quick learner from Greensboro NC says:
could you tell me exactly which parts I need to put into my shopping cart ?
Partially the Series 190 Coil Balance Stamp number.
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Casey from SWISCO responded:

I agree that the parts that Tom recommended appear to match yours, though you'll have to remove your original parts from the window to confirm that the specifications match up to ours.

As for the coil strength options, there should be a number stamped on the base of the original springs that you can read once they are removed to choose the corresponding strength options. If not, you'd need to weigh your window sash and divide the weight you the number of coils used on both sides of the sash to choose the best strength options for your window. Thank you. 

A quick learner from NC says:
Here are some pics of the coil I removed from the window sash. There's no markings or anything stamped onto it.
The window sash weighs about 14lbs.
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Casey from SWISCO responded:

You can use one of the S190-740 coils on each side of the window to support a 14-pound sash. Let us know if you have any other questions. 

A quick learner from Greensboro NC says:
I got the parts to replace the Coils, but I'm too dumb to figure out how to install them. Can you recommend anyone that lives near the Greensboro NC area?
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Tom from SWISCO responded:

I'm afraid that I'm not familiar with your area. Our only location is in South Jersey and my knowledge is limited to this region. 

A local hardware store (like a mom and pop shop) might be able to point you to someone they trust. We also have a general video on how to install coil balances; it doesn't feature these exact parts but the principles are pretty much the same. It may be of some help to you.

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