Cannot Identify Spiral Window Balance

A handy person from Alameda, Calif says:
I didn't see part listed, here goes... Its a spiral window balance: width 9/16 inch and length of tube is 17 inches. There is a red tip not visible in picture. The u-shaped end adds one more inch and clips onto the metal frame of the movable window. The window itself is 30-40 years old, aluminum non-tilt was considered a low cost replacement for double hung wooden windows. Sorry about low quality photo. Any ideas?
User submitted a photo of spiral window balances.
Profile picture of Paul
Paul from SWISCO responded:
Thank you for posting. This balance will have to be specially made, as it has a unique clip at the end. Check out this custom spiral balance request form that I've started for you based on your specifications and fill out the rest of the information. One of our representatives will get back to you shortly thereafter with a price quote and an item to add to your cart.
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