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 Tyco Circuit Breaker, 10Amp (CB10) $4.27 Add to Cart Transformer, 120V pri, 24V sec. (F-46X) $17.98 Add to Cart Low Cost Timer With Battery Back-Up, Mist Now (CB-S1-M) $308.00 Add to Cart