14M18M Adapter – NN046C

The abbreviation “14M18M” stands for “14-millimeter male to 18-millimeter male,” indicating the joint sizes and genders of the adapter. This means that one end of the adapter has a male joint measuring 14 millimeters, while the other end has a male joint measuring 18 millimeters. This allows users to connect accessories of different sizes and genders to their smoking or vaping device. NN046C is likely a product code or part number that is specific to the manufacturer or distributor of this particular adapter.