The 2.5 gallon bottle is great for anyone who owns a Diesel powered car or truck. Keeping one at hand can keep you out of trouble when out on the road. It comes with its own hose and filling nozzle to avoid spilling DEF on vehicle components. All bottles are new, Transliquid Technologies does not reuse any container to maintain DEF purity. We have a strong commitment to fulfill the quality expectations of our customers.