Johnson Controls A72AA-3C Two Pole Temperature Control, 50/90F, Diff 3 - 30 Adj, 6' Cap, Dpst, Nema 1, 11/16 X 6-3/4" Bulb 1. Johnson Controls A72 Series of Heavy-Duty, Two-Pole Temperature Controls are used to regulate temperature in various HVAC applications including cooling towers and evaporative condensers.
