Balance for an Alenco aluminum window

A handy person from Chicago says:
Can you suggest a replacement part for a channel balance, 1/2 inch diameter 19 inch long tube with red end spiral balances originally installed in 1972 in Alenco non tilt aluminum windows. Alenco does not make these now. I think there is a notch/hook in the lower end of the window that the balance can be hooked into with a special tool. See photos
Where can I get replacements, locally or sent through USPS etc
Thanks, John
Spiral balance
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Tom from SWISCO responded:
Can you confirm the diameter of the balance? Based on its design, it should be either 3/8" or 5/8". I am leaning more towards the thicker version. If it is 5/8", I recommend our Series 500 spiral balance.

If this is a match, you can order it directly from our site.
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
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How To Choose the Proper Spiral Balance Tip Color
How To Choose the Proper Spiral Balance Tip Color
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How to adjust a spiral balance on a non-tilt window
How to adjust a spiral balance on a non-tilt window
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