Home / Replacement parts / 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 Timer With Battery Back-Up, Mist Now (CB-S1-M) $249.00 Add to Cart Timerco Digital Time Clock 24VAC (TM619-24V) $43.75 Add to Cart Enclosure 8x6x4 Hinged Clear Cover, Black (H8064HCLL) $85.30 Add to Cart