The Genie GS-4390 RT is a rough-terrain scissor lift in the Genie aerial lifts lineup, designed for outdoor construction and maintenance work on uneven surfaces. It features four-wheel drive, oscillating axles, and foam-filled rough-terrain tires for improved traction and stability. The GS-4390 RT provides a working height of up to 43 feet and a platform capacity suited for multiple workers and tools. Its wide platform, extendable deck, and proportional controls support efficient elevated access. Common applications include building construction, facility maintenance, and industrial installation where stable vertical access is required on challenging job sites.