Reelcraft UR7850 OLB70 spring retractable DEF hose reels are designed to aide in the dispensing of Diesel Emissions Fluid (DEF) for late model diesel engines, these reels are an integral part in emerging DEF service stations in marinas, truck stops and garages. This sort of dispensing equipment is going to become more prevalent across the United States as the push for greener emissions standards escalates. Reelcraft is offering a solution.