Diesel Exhaust Fluid is distributed by Air1's established network of Official United States of America DEF Distributors who are also involved in supplying fuel and lubricants to the transport industry. They are located all over North America and can give you a very local service close to yourvlocation. These Diesel Exhaust Fluid distributors in Canada may be supplying you your fuel or lubricants already, so they will be able to distribute DEF to your depot too.