The Northern DEF-Pro All In One for Bulk DEF Fluid is a fully assembled out-of-the-box mini bulk system used for the safe storage and dispensing of Diesel Exhaust Fluid. Heated and insulated, the All in One DEF-PRO storage tank and dispensing system is a complete package made easy. Included in the bulk def fluid storage system is the Hornet W85 DEF Pump, the world's first self priming hybrid pump, which has a 20% higher flow rate than any other DEF pump on the market. The pump is thermal overload protected and has an incredible price to performance ratio.