DEF Fluid
2.5-Gal Jugs
Packaged DEF available by the case or pallet for convenient storage and handling.
55-Gal Drums
A mid-volume DEF solution offering greater capacity without the space requirements of a tote.
330-Gal Totes
330-Gal Totes
A high-volume DEF solution designed for regular consumption and efficient on-site storage.
Quality & Certification
API Certified Diesel Exhaust Fluid
All Diesel Exhaust Fluid distributed by DEF Warehouse is API Certified and meets ISO 22241 specifications for use in Selective Catalytic Reduction (SCR) systems.
Not all DEF is created equal. API certification provides an added level of confidence that the product meets recognized quality and purity standards for proper SCR system performance.
Marine DEF
Marine DEF Delivery
Marine Diesel Exhaust Fluid Available in 275-gallon totes and bulk tanker quantities for commercial vessels, ports and marine operations. We service major ports throughout the Northeast and along the East Coast, including New York Harbor, Bayonne, Baltimore & Boston.
API Certified Marine DEF
API Certified Marine DEF provides added confidence in product quality, purity and performance for SCR-equipped marine diesel engines