Urea 46% - Fertilizer Grade Granular: is commonly used in agriculture as a fertilizer and an animal feed additive. Its primary function is to provide nitrogen to plants to promote green leafy growth and make the plants appear lush. It is primarily used to bloom growth. UREA 46% AUTOMOTIVE GRADE: is special urea for make best quality diesel exhaust fluid, High quality DEF-grade (Automotive grade) urea. This product is a low biuret, formaldehyde-free micro-prill and is appropriate for use in Diesel Exhaust Fluid. It meets the ISO-22241 specification and the only suitable Urea for the production of AdBlue/DEF/AUS32/ARLA32 solutions.