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Introducing our Diesel Exhaust Fluid DEF 55 gal Drum from Kleen Def - a reliable solution for SCR Systems! Made in the USA by a Veteran-Owned Business, this DEF fluid meets ISO 22241 standards and is perfect for Fleet and Vehicle Maintenance. The container size of 55 gal makes it suitable for both commercial and industrial applications. Experience the benefits of using our Kleen Def Diesel Exhaust Fluid DEF 55 gal Drum with your SCR Systems - order now!