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 Low Cost Control Box With Battery Back-Up, Mist Now (CB-S1-M) $308.00 Add to Cart Control Box, Analog Clock, Remote Ctrl, No Float (CB-A-RONF) $420.00 Add to Cart Single shot timer, 120VAC for PJ200, AMS-S1-M (KSKR5F03) $66.65 Add to Cart Enclosure 8x6x4 Hinged Clear Cover, Black (H8064HCLL) $85.30 Add to Cart