Strong plastic aspirator for vacuum filtration and other lab applications, Designed to prevent any flooding, back-flow, or turbulence. Includes 5.9IN (15 cm) hose, The top nozzle has an outer diameter of 1.5 cm
SimulScope Bedside Ascultation System, allows physicians and students the ability to hear live physiological sounds with up to 20 other people at the same time, Excellent for bedside instruction, Sounds can be connected to a computer for recording and playback