Home / Control Box and Components / Knob for potentiometer (Knob) Knob for potentiometer (Knob)$2.41 Knob for potentiometer (Knob) quantity Add to Cart SKU: Knob Category: Control Box and Components Product ID: 2481 Description Description Replacement knob for potentiometer that controls spray time adjustment Related products Low Cost Control Box With Battery Back-Up, Mist Now (CB-S1-M) $308.00 Add to Cart Potentiometer 1M, 1/4 watt (P-1M) $3.32 Add to Cart Pilot light, Yellow, LED 24VAC/DC (PL-YW-LED) $6.28 Add to Cart Agitator (AG-W20) $35.69 Add to Cart