Two Point, Two Ball, Plastic Body Vertical Level Sensors Two Point, Two Ball, PP Body Vertical Level Sensors Filters Product Image | Model Number | Stem Length Product Image | Model Number | Stem Length Stem Length PSB2-100-2/2-P100mmPSB2-150-2/2-P150mmPSB2-200-2/2-P200mmPSB2-300-2/2-P300mmPSB2-500-2/2-P500mm