I have vinyl Soft-Lite double-hung tilt-in windows. Can you identify the part numbers for the 3 photos attached? The balance assembly is stamped with "Patent number 5,353,548".
The silver bars measure 2 13/16 x 4/16
If you sell the balance assembly, do you have an installation video or instructions?
Lastly, is the foam plug in the correct place on the window? Most of mine are missing. Is it important to replace them?