Window Balance 24 4 EJ

A home owner from Indianapolis IN says:
It has the numbers 24 4 EJ on the metal piece which measures 25 inches from one point of metal to the other. It is 1/2 inch wide and from non-tilt window.
There is a white plastic on one end and a black metal piece on the other end which
kind of tapers to a point.
The window sash weighs 20 lbs.
I was looking at S351, but not sure if it would work since does not look like the black metal piece on one end.

User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Don't worry about the color of the nylon ends. What matters most is their size. The Series 351 comes with the 19-002 an 15-002, so as long as the size and general style of these parts match what you have then you should be good to go.
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