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 Pilot light, Yellow, LED 24VAC/DC (PL-YW-LED) $5.19 Add to Cart Control Box, Analog Clock, Remote Ctrl, Float Lead (CB-A-RO) $404.65 Add to Cart Pilot light , Red, LED 24VAC/DC (PL-RD-LED) $5.19 Add to Cart