Each 2.5-gallon box in this bulk package delivers the high standards of EPA, ISO 22241, AUS 32, and DIN 70070, ensuring optimal purity and concentration. This DEF is an Ultra-Pure, formaldehyde-free solution that reduces nitrogen oxides (NOx). It is specially formulated for diesel engines equipped with SCR systems, delivering enhanced performance and reliability. This Diesel Exhaust Fluid is API certified, guaranteeing quality and suitability for SCR operations. To provide ease of use, every box includes a dispensing nozzle, ensuring an easy pour. Made from robust corrugate material, the boxes have exceptional stacking strength for safe storage. Choose this DEF 80-pack – an environmentally friendly solution for SCR systems and a sure way to contribute to a healthier planet.