Window Balance, Shoe, and Pivot Bar - MW Patriot Window Parts

A home owner from Pottstown, PA 19465 says:
My pivot bar matches the dimensions for part 26-021. The thickness of mine is 3/16". Is this the same dimension for the 26-021? The only marking on the pivot pin is number 2311.

The T-Lock balance shoe looks like your part # 15-194. All the dimensions given match my unit.

The window balances appear to be BWI 28C. The overall length of the balance is 28". It's width is approximately 9/16". My balances are good, I just don't know if the 15-194 will work with them. They attach with hooks into a hole in the window channel.
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Tom from SWISCO responded:

Thank you for posting. I'm afraid the 15-194 won't work for you. Your pivot shoe, and as a result your metal channel, has a deep groove in the stem. The 15-194 has no such groove, which means it will not fit in your metal channel. You'll need an all new Series 795 balance. I still recommend buying the 15-194, as you'll have to swap it out with the bigger shoe that comes with the Series 795 by default.

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