For sale is a Square D 9036DG2, Series "B" Liquid Level Switch. Contacts close on liquid level rise. 2-Pole rating up to 5 HP at 230V, 3-Phase. Very good condition, removed from spare parts inventory at a closed-down manufacturer's plant. I looked at the contacts inside and they are in GREAT condition, everything works. (2) Units available. Both are very dusty.