Comparison : Item # 3120-04, Evaporative, Kuderna-Danish, Hooks and Springs, with Graduated Concentrator Tube, 500mL Flask Capacity, 10mL Tube Capacity, 0-1 x 0.1mL Tube Graduations x 2-10 x 1mL Subdiv., 600mm Overall Height
Item # 3120-06, Evaporative, Kuderna-Danish, Hooks and Springs, with Graduated Concentrator Tube, 500mL Flask Capacity, 10mL Tube Capacity, 0-1 x 0.1mL Tube Graduations x 2-10 x 1mL Subdiv., 600mm Overall Height