Check the listing for details. Blue DEF DEF001 Diesel Exhaust Fluid - 55 Gallon Drum. Condition: New. Listed at 384.95 USD. BlueDEF is a mixture of 32.5% high purity synthetic urea and 67.5% deionized water that is used in Selective Catalytic Reduction(SCR) systems on diesel engines. DEF is the primary ingredient used to help convert NOx to harmless nitrogen and water. BlueDEF is stable, colorless, non-flammable, non-toxic and is classified as minimum risk for transportation. BlueDEF conforms to the ISO-22241-1 specification for DEF, is API registered and meets or exceeds OEM specifications Shipping: Item will ship via Freight FREE. Please let us know if a liftgate is needed. We may need to contact you for additional information prior to shipping. Handling time may vary from listing details due to product being shipped by Freight Return Policy: Buyer has 30 days from receipt of item to request a returnBuyer pays for return shippingItem must be returned in same condition as receivedIn no instance will a return or refund be permitted for a used itemUpon receipt and inspection by seller, refund will be issued within 2 business days. Refund amount will equal amount paid to seller less the fees associated with the transaction Cancellation Policy:If buyer wants to cancel transaction prior to shipment of order, for any reason, the amount refunded will equal amount paid to seller less the fees associated with the transaction