33 6 KS Caldwell Springs

A quick learner from Scottsdale AZ says:
I need to replace 4 assemblies- 2 windows.

Marked 33 6 KS Caldwell

34" length 1/2 channel.
User submitted photos of a window balance.
Profile picture of Donna
Donna from SWISCO responded:
Thanks for posting! Just by eyeballing your pictures, I think you should look at our S390-34 channel balance. However, I'm not so sure about the option. Could you give me the weight of your sash? Your stamp of 3360 is not standard, and if that's what you need your balance will have to be custom made. I'd like to double check first, just in case!
A quick learner from scottsdale says:
It is stamped 33 then either 6 or G.
Weighs about 20 lbs
Profile picture of Donna
Donna from SWISCO responded:
Great, thanks! If you sash is 20 pounds, then I recommend our 3330 option. Two 3330 balances working together can hold a window sash weight of 18 through 23 pounds.
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