Fitting to attach tubing to your DGSHAPE regulator. Labeled as the red #1 in the photo attached, 1 piece included. Does not include the regulator(#19) shown in photos.

Fits:

DWX-4

DWX-51D

DWX-52DC

DWX-52D

DWX-50

DWX-52DCi

DWX-50N

DWX-52Di

DWX-53DC