APT™ DEF/AdBlue® Recirculation System
Featuring The DEF Recircualtion System
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Diesel exhaust fluid will freeze at approximately 12 °F. To prevent freezing of fluid in colder climate installations, we suggest the recirculation system detailed here. A TS-550 evo™ tank gauge paired with temperature sensors installed using the recirculation tee assembly will ensure automated recirculation and prevent freezing.