SWISCO - The Replacement Hardware Authority

Need 19B replacement balances

A quick learner from Canada, Quebec Province says:
I need some 1/2" Wide Channel Balances series 350 i think, so i am sending some photos just to be sure. On the metal channel that is exactly 20" long measured, there is "19B" inscription. If i refer to the 350 series it should be 19xx option number 10 20 30 or 40 is that number the spring strength ? What i need is for the exterior thermos window. I need Top Sash Guide, Howmet 18-018, some Take Out Clip 16-002,
User submitted photo of their 19 B channel balance.
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Paul from SWISCO responded:
Good Morning,

This does appear to be the Swisco Series 350 Channel Balance with the stamp option 1920.
A quick learner from Canada, Quebec Province says:
Thank you Paul, yes indeed it seems to be the 350 series but it is really stamped 19B, B not 20. So i wonder if you know the right code for the exterior windows that are more heavy and need a stronger spring. I the 2 last digit the force that can hold the windows weight?
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Mike from SWISCO responded:
Your stamp of "19B" translates to our stamp of "1920."
A quick learner from Canada, Quebec Province says:
Thanks Mike, i was a little bit confuse ...
19B balance is for the interior window and you confirmed me that it is the 1920 even if the channel is really 20 inchs long.
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Mike from SWISCO responded:
You're welcome. Let us know if you have any other questions.
A quick learner from Canada, Quebec Province says:
What stamp do I choose for my exterior window balances? They are marked 19D (length is 20"). Is it 1940? I just need to know the correct stamp so I can ordert he balances and repair parts I need.

Thanks in advance.
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Donna from SWISCO responded:
Hello,
You are correct. The 20" non-tilt channel balances with stamp 19D normally translate to 1940.
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