Quick tilt coil

A quick learner from Michigan says:
Help! I don't know the solution to replacing this. There is 2 coils, idk if it's one contraption or 2 separate sevens put on top of eachother. Please help me replace this part. It is the left side.
Thumbnail of the uploaded file named Roller-Tilt Balance
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Jasmine from SWISCO responded:

Thanks for writing in! Your coil balance assembly looks like it uses the S161-07 Roller-Tilt. You would need to use the 15-086 Tandem Coil Housing along with the S180-7 Coil Balance to complete the assembly.

To confirm that these will be a fit for your window, carefully review the dimensions below.

Alternate image for S161-07
Alternate image for S161-07

Detail of 15-086
Detail of 15-086

A quick learner from Michigan says:
So do I need one or two of those?
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Jasmine from SWISCO responded:

I'm sorry to say I don't quite understand the question. All of the parts mentioned would make one assembly. You would install the S180-7 into the 15-086 and then snap that tandem housing on top of the S161-07.

I hope this helps!

A quick learner from Michigan says:
Wow, thank you. I did not expect a good answer with videos and links. That is perfect. I should be able to take it from here. Thank you.
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Jasmine from SWISCO responded:

Okay, great! I'm glad I was able to provide you with the information you needed. Please don't hesitate to reach out with any other questions you might have.

Have a great day!

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How to Replace a Triple Coil Balance System
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