Fitting, Quick Connect: Description
Norma and Voss are the two different types of quick-connect fittings used to attach the various Diesel Exhaust Fluid (DEF) system components and lines. Norma is a two-button type and Voss is a two-tab type connector fitting.
CAUTION:
Before separating a Quick-Connect fitting, pay attention to what type of fitting is being used. This will prevent unnecessary fitting or fitting latch breakage.