Window balance

A quick learner from Seattle says:
I have two windows that have no balances. They weigh 16 pounds each. They have not had the balances since I purchased the home so I don't have one to compare to for ordering new ones. I have include four pictures of the windows including three that have measurements. Could you please help me identify the balances I need.
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Paul from SWISCO responded:

It's very difficult to identify what balances would work for your window without seeing the originals. Do you have an identical window in the house that may use the same hardware? Even if it's a different size, it would put us on the right track. 

A quick learner from Seattle says:
I do have one other window of the same kind but different size. After disengaging the balances I cannot get the window out of the channel around them. I will enclose a few pictures of the window and the parts of the balance I can see. I hope these pictures can help. Thank you for looking into this and let me know if there is anything else you need from me to help identify these parts
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Tom from SWISCO responded:

We're close! We can definitely replace this balance, we just need to see this one out of the window. There are a few important details that we cannot make out while it's still installed.

Have you seen the video below? This outlines how to remove a channel balance from this kind of window. 

Once you have it out, we'll need to see one clear picture of the top nylon attachment and one clear picture of the bottom nylon attachment. Going back to the first window, I would also like you to give me the height of the visible glass. That will allow us to calculate the size you need. You already gave us the sash weight, so that's the last important detail already cleared up.
Once we have this information, I'm confident we can get you a match!
A quick learner from Seattle says:
Thank you for the video, it was very helpful. Here are those pictures and the height of visible glass on the original is 22 inches
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Tom from SWISCO responded:

Thank you! With a visible glass height of 22", I think our S385-23 can work for you. I would also recommend our 2230 stamp option for your sash weight of 16 pounds.

A quick learner from Seattle says:
Awesome! Thank you for helping me find these parts!
How to replace a window sash channel balance
How to replace a window sash channel balance
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