window balance

A handy person from Avon lake ohio says:
I have a nuprime window with the 2 channel balances that I need. It is 16.5 inches long. The number 1620 is stamped on the side of the balance. it is 1/2 inch wide.

I cannot find anything that is 16.5 inches long on your site.

HELP!!!!
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Tom from SWISCO responded:

Hello! We can replace this for you, but because of the length it will have to be specially made. I'll email you a special order link and price quote right now for 2 of them.

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