The Genie GS-3390 RT is a rough terrain scissor lift in the Genie aerial lifts lineup, designed for outdoor construction and maintenance applications. It features a diesel-powered four-wheel drive chassis, positive traction control, and foam-filled rough terrain tires for use on uneven ground. The GS-3390 RT provides a working height of up to 39 ft 1 in and a platform capacity suited for multiple workers and tools. Its wide platform and extendable deck support elevated access for installation, inspection, and repair tasks. Common uses include commercial building work, industrial site maintenance, and exterior construction projects.