The Vevor DEF transfer pump is designed for fast, efficient transfer of diesel exhaust fluid and other low-acid or low-alkaline liquids. Its diaphragm self-priming design delivers up to 9 GPM flow with a maximum lift of 26.25' and suction up to 9.84'. A pure copper motor, aluminum alloy body, fluororubber seals, and PPB pump head help provide reliable long-term performance. The battery-powered setup makes it convenient for mobile use in refueling, irrigation, watering, and fluid transfer applications.