Supreme Duet is the most advanced bottle top dispenser designed following years of research this next generation dispenser is highly robust and reliable. The bottle has a recirculation value for redirecting the liquid into the bottle for bubble free dispensing without any loss of reagent and rinsing the instrument without dismounting from the bottle. Duet has a smooth and soft plunger for easy working in difficult laboratory conditions. With a worldwide patent, Duet can be used in 4 modes dilution, rinsing, dual liquid handling and re-circulation all in a single unit. • Adjustment Knob (PP) 180º Rotation • Fully Autoclavable • Light weight and easy to use