A multichannel pipettor, sometimes called a multichannel pipette or repeat pipettor, is used in research and laboratory applications to fill multi-well microplates with a liquid solution. Because multichannel pipettors speed processing and ensure that consistent volumes of liquid are dispensed, they are often used in high-volume labs. Single-channel pipettors dispense solution into one well at a time. Pipette tips are used to contain the liquid being transferred. Multichannel pipettes should be chosen to match the number of wells on one row of the receptacle. Eight-channel and 12-channel models are designed for use with multi-well microplates. Electronic models enable users to program the desired quantity. Features to consider when selecting a multi-channel pipette include channel width, volume range, and graduation increments.