Diesel exhaust Fluids

DEF at A&I Distributors

We help our customers’ diesel engines run cleaner and smoother. A clear, non-toxic, and non-flammable fluid, Diesel Exhaust Fluid (DEF) is made of purified water and urea. A&I Distributors offers DEF products to help reduce the amount of harmful pollutants released into the atmosphere from diesel engines.

Cleaner Engines

DEF helps diesel engines meet the strict emission standards set by the Environmental Protection Agency (EPA) and other regulatory bodies around the world. Injected into the exhaust stream of diesel vehicles, DEF reacts with harmful nitrogen oxides to convert them into harmless nitrogen and water vapor. 

Reduced Emissions

A&I Distributors can help our customers reduce their emissions and keep their diesel vehicles running clean. Quality, reliable DEF products are crucial for diesel-powered vehicles and equipment to remain compliant with emissions regulations and reduce their impact on the environment. DEF products offer:

Optimized combustion

Better fuel efficiency

Increased power

Reduced maintenance

Fewer regenerations

Less wear on the engine

Safer emissions

Better reliability

Shop DEF Products

We’ve got you covered. A&I Distributors offers end-to-end DEF solutions available in bulk, including 330-gallon IBC, 55-gallon drums, 2-2.5-gallon cases, single 2.5-gallon cases, and 4/1-gallon cases. Brands we carry:

Purus DEF

Blue DEF


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