DEF-Trac^™ DEF Piping System

The Newest Flexible Piping System from OmegaFlex for Diesel Exhaust Fluid Diesel Exhaust Fluid (DEF) is now required by diesel-fueled heavy-duty trucks, pickups, SUVs and vans. DEF is used to destroy harmful emissions in the exhaust and to meet the latest EPA environmental standards. The entire system with simple fittings can be installed using standard hand tools. OmegaFlex^® has a reputation as a leader in flexible piping technology and has developed a number of unique corrugated tubing products specifically for the distribution of liquid and gaseous fuels including DEF-Trac^™.