20' Personnel Lift (Electric), Genie GR-20, Will - PURCHASE NEW AND WELL MAINTAINED, Service records available... Genie GR-20 lifts are considered very good for elevators because they are designed to be compact, lightweight, and can fit through most passenger elevator doorways while being drivable even at full height, making them ideal for use in buildings where access through elevators is necessary; particularly for warehousing and maintenance tasks.