Looking for a replacement for channel balance for non-tilt window

A home owner from CA says:
Width: 1/2 inch
Length: 28
Marked : 2730S
And one with same width but 22 inches long
Marked: 2130Q

Also my windows doesn't have the small locks on the side to release that window ,,,
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. Check out our Series 350 and see if this is a match for your two balances. It looks like you're also missing a 16-002 take out clip.
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