Window Hardware

A home owner from Pickering, Ontario, Canada says:
August 20, 2021
This hardware is from a vertical sliding window, with 2 panes sliding up/down. Total 4 assemblies for this one window. The pictures are from on of such assemblies. I could not find any markings on the plastic casings. The only marking I found was on the coil (see pic) which shows a 9 (or 6).

I need to know what to order to fix this window. All the coils have snapped (all 4 of them).

Thank you for your help!
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Tom from SWISCO responded:
August 25, 2021

I do not immediately recognize this balance assembly, but we may still be able to help. Please give us a little more time to look into this and I'll get back to you ASAP.

In the meantime, can you confirm how thick the pivot shoe and spring are?
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Paul from SWISCO responded:
August 26, 2021

We don't sell this exact balance assembly but we have a similar coil spring set up that may work for you. The pivot shoe would be 15-228 and the coil spring will be the S160-6, which carries 6.5 pounds per spring. Finally, the coil spring will rest above the bottom bumper of the 15-150S coil spring cover.
A home owner from Pickering, Ontario, Canada says:
August 26, 2021
Thank you so much for looking into this and keeping me updated - much appreciated!

I measured the thickness and it's 0.544" (or 13.82mm). Width is 1.166" (or 29.61mm) - see attached pictures.

Will the parts you are suggesting fit?

Thanks! Pierre
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Paul from SWISCO responded:
August 30, 2021

The thickness of our parts should be fine, but the width is a little concerning. Yours is a lot smaller than ours. Unfortunately, we do not have anything that better aligns to your dimensions. I am very sorry for the inconvenience. 
A home owner from Pickering, Ontario, Canada says:
August 30, 2021
Thanks for your reply Paul. How much wider are your parts? Could I grind them to size or would that affect the integrity of the parts?

Thanks! Pierre
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Paul from SWISCO responded:
August 30, 2021

The shoe I recommended is 1-1/4" wide, which is considerably larger in my opinion. I don't think it would be easy to grind that down. You can see a detailed breakdown of its size on the store page I linked to above.
Pivot Shoe, 17/32" Thick
Pivot Shoe, 17/32" Thick
15-228
$2.57
6.5 lbs Series 160 Coil Balance
6.5 lbs Series 160 Coil Balance
S160-06
$4.85
1/2" Coil Single Support
1/2" Coil Single Support
15-150S
$1.10
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