The Drummond Portable Pipet-Aid XL has a longer handle to reduce the amount of arm lift required to perform the same operation as with a conventional pipettor. The ergonomic design features and adjustable sliding hand rest and a removable stand which enables the unit to be set down without contaminating the pipette. Three speed settings with separate aspirate and dispense buttons provide more precise control. The EZ Grip™ nosepiece accepts 1 to 100 mL pipettess. Self-locking filter, with hydrophilic layers, prevents further pipetting if filter becomes contaminated.