part identification

A quick learner from Oregon says:
I believe I have narrowed this down correctly, but wanted to double check.

I have Milgard windows. My channel balance is marked 2090 26.
I believe I need series 385; however, I do not see an option for 2090.

From the measurements:
shoe - wing to wing is 15/16", base to tip nearly 1 1/8"
top - wing to wing is also 15/16", base to tip 1 3/8"
metal to metal - 21"
sash weight - 20lbs

User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting! This balance looks a lot like our S385-21 channel balance. If your sash weighs 20 pounds, I'd recommend the 2040 option.
A quick learner from Oregon says:
Thank you, we'll give that a try!
Profile picture of Paul
Paul from SWISCO responded:
You're welcome! let us know how this works out for you.
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