Need 2 spring replacements

A handy person from Rothschild says:
October 26, 2020
I have double hung tilt window with a broken spring. I don't know if I need new 3D335 picture number part? I would like two spring replacements so they ware the same. Also don't have a tool to load them. Want to make sure I'm getting the right parts. Also broke the plastic piece that goes over the top and not sure if you have them.
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Casey from SWISCO responded:
October 29, 2020

Hello,

We'd be happy to help but we'll need to confirm the diameter of the spiral balance tube, which would be either 3/8 or 5/8". If you need to pivot shoe as well, we'd need to see a photo of it removed from the window, including the exact width and depth of the shoe. Thank you!
A handy person from Rothschild says:
November 4, 2020
I don't believe I need pivot shoes. I can see the spiral balance is broke so not going to cut out pivot shoe unless I could see it's broke. I'll take a picture of the balance tube measurement. It seems way bigger than 3/8 but not quite 5/8? Closer to 5/8.
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Casey from SWISCO responded:
November 4, 2020

It looks like your tube might be closer to 5/8" in diameter. If so, take a look at our S600-22 spiral balance with a red tip strength option. You may also want to consider purchasing a 75-006 charging tool. Thanks for posting!
Spiral Balance Charging Tool for Tilt Windows
Spiral Balance Charging Tool for Tilt Windows
75-006
$9.97
22" Series 600 Spiral Tilt Window Balance
22" Series 600 Spiral Tilt Window Balance
S600-22
$8.72
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
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How to Remove a Pivot Shoe (Cutout Method)
How to Remove a Pivot Shoe (Cutout Method)
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How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
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How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
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How to choose the proper spiral balance tip color
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