The Rota-Filler 3000 combines a powerful motor with a lightweight, ergonomic design, a reflection of our commitment to the comfort of the end user. Features such as textured grip, hand-neutral design for right- and left-handed users, concave triggers, and convenient controls ensure the filler provides many hours of stress-free filling and dispensing. Filling and dispensing speed is easily set with a single switch. Force liquid out of your pipette by setting the unit to low- or high-speed blow-out mode, or flip to gravity mode for use with "to contain" pipets and dispense liquid without the motor. Filler accommodates glass and plastic pipets ranging in volume from 1 to 100 mL. The filter in the polypropylene nozzle prevents contamination. Pipetting speed is easily set. Slide the speed switch between two operating modes-blow-out or gravity. Select the low or high range in blow-out mode to dispense the remaining liquid in the pipette. Flip to gravity mode for use with "to contain" pipets and dispense the liquid without the motor. A red low-battery indicator signals when the batteries need to be recharged. Filler can be recharged while in use, or while resting in either the dual-position desktop or magnetic wall-mountable holder (both included). Includes two replacement 0.45 micrometer filters. Pipette nozzle: polypropylene, autoclavable. Measures 170mm length by 47mm width by 143mm height.