30" heavy duty spiral window balance with black bearing. 9/16" tube diameter. Standard Rod Length: 30-3/4". Non-tilt window balance. Tube Length: 30".
Heavy Duty Laser Welded Tube.
General Info:
White, red and blue bearings are for sashes weighing up to 30 lbs; the black bearing with nyclad tip is for sashes weighing up to 40 lbs.
The appropriate tensioning tools are 70-515
