What is Diesel Exhaust Fluid?

Diesel Exhaust Fuel (DEF) is a mixture of 32.5% synthetic, high-purity, automotive-grade urea and 67.5% deionized water. DEF is injected into selective catalytic reduction diesel engines in buses, cars,vans, agricultural and off-road vehicles. It enhances performance by approximately 5% and transforms harmful nitrogen oxide emissions into harmless nitrogen and water. DEF is clear, non-toxic, nonflammable, non-explosive, and generally nonhazardous but needs to be filled into a dedicated DEF tank.

What is a diesel Exhaust Fluid Spout?

DEF Spout is a plastic flexible tube used to dispense Diesel Exhaust Fluid additives from a container. Con-Tech DEF Spouts are offered in standard, vented or collapsible versions. Con-Tech’s Vented DEF Spout is used to dispense diesel exhaust fluid additives typically from 1-gallon, 2-gallon, 2.5-gallon, and 5-gallon jugs and is available in 38mm, 45mm, and 63mm sizes.