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 Pilot light , Red, LED 24VAC/DC (PL-RD-LED) $5.19 Add to Cart Control Box, Digital Clock, Remote Ctrl, No Float (CB-D-RONF) $420.00 Add to Cart Moujen Micro switch with long lever actuator (MJ2-1701) $10.20 Add to Cart Tyco Circuit Breaker, 10Amp (CB10) $4.27 Add to Cart