The new Dispensette use builds on a half century of brand bottle top dispenser experience. It features a floating piston design with even lower operating forces, a new safety discharge system, and an improved sealing system, eliminating sealing washers for even better reliability. Designed to attach directly to your reagent bottle eliminating poured transfer. In addition to the product improvements, a new 0.1-1Ml size is available. Choose the Dispensette use for general purpose dispensing of acids, bases, buffers and many common solvents (not suitable for HF). for hydrofluoric acid, choose the Dispensette use trace analysis Platinum-Iridium. For concentrated acids, TFA, peroxides, THF and other difficult solvents, choose the Dispensette use organic.