Need replacement for window balance

A home owner from Plano says:
Hi,

I attached the pictures of my window balance. Their length is 29 inches. other dimensions are 9/16 and 5/8. Please let me know what part number I need to order.

Thank you for your assistance.

Thanks,
Illias
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
If the balance shoe depth is 1-1/8", then I recommend our S390-29 with a 2830 stamp.
A quick learner from Plano says:
Thank you Paul.

Yes, the shoe depth is 1-1/8".

I have multiple windows as listed below with their sash weights;
6 windows each with a window sash weight of 18 lbs
4 windows each with a window sash weight of 25 lbs
2 windows each with a window sash weight of 15 lbs

How do I place the order and pay for them? I called and spoke to your rep. She mentioned that for any custom parts, I need to go through by filling out a form that you would send me..
Profile picture of Paul
Paul from SWISCO responded:
These balances don't have to be custom made in any way. You can place your order directly on our site whenever you wish.
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