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  DEF Adblue
Diesel Exhaust Fluid (DEF) One Gallon
Diesel Exhaust Fluid (DEF) One Gallon
Diesel Exhaust Fluid (DEF) Drum
DEF Adblue is a urea-based chemical reactant designed specifically for use in SCR systems to reduce NOx emissions.

DEF Informational Video

Usage Calculator
Calculate your annual DEF usage, click here.

DEF Adblue is API certified to guarantee it meets ISO22241 specifications. DEF Adblue is available in various packaging sizes, including 1 and 2.5 gallon bottles, 55 gallon drums, 275 gallon disposable totes, 330 gallon totes and bulk. Our 2.5 gallon bottles come with a vent and dispensing spout to allow for easy fill of your DEF tank within 30 seconds.

For more information, please contact your local Customer Assistance Center.
DEF AdBlue Product Description
The raw materials used to produce DEF include natural gas, coal or other petroleum products. DEF is prepared by dissolving solid high purity urea in deionized water to create a 32.5% solution in water. DEF and similar urea-based products are widely used today for a variety of agricultural and industrial needs. Fleetguard/Valvoline Air Shield DEF meets ISO22241 specifications for purity and composition, while being:
  • Non-toxic and non-polluting
  • Non-flammable
  • Stable and colorless
  • Non-hazardous
  • Does not require special handling
Dispensing Equipment
To prevent contamination, clean dispensing equipment made with DEF compatible materials must be used when dispensing Air Shield into the vehicle. Cummins Filtration offers a complete line of DEF compatible dispensing equipment.

Cummins Filtration has recently released new information about Air Shield DEF. Click here to read the press release.


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