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 Timerco Digital Time Clock 120VAC (TM619-120V) $45.92 Add to Cart Control Box, Digital Clock, Remote, Float Lead (CB-D-RO) $435.00 Add to Cart Potentiometer 1M, 1/4 watt (P-1M) $3.32 Add to Cart Agitator (AG-W20) $35.69 Add to Cart