DEF Diesel Exhaust Fluid - 2.5 Gal. Container Packed 1 Each

Diesel Exhaust Fluid (DEF) is an aqueous urea solution used in Selective Catalytic Reduction (SCR) to lower NOx concentration in the exhaust emissions from diesel engines

This solution adheres to quality standards that are maintained in accord with ISO 22241 specifications.[2] Initially the specification was described in DIN 70070.[3] In 2006 the worldwide ISO 22241 standard was introduced, which also stipulates analytical test protocols to verify adherence to specifications, as well as requirements for storage, transport and handling of the fluid.