Answer
Sep 30, 2024 - 08:16 AM
In JIC (Joint Industry Council) fitting sizes, "3/4" refers to a 3/4-inch outside diameter (OD) of the tube or hose that the fitting is designed to connect. This typically corresponds to a -12 size in the JIC fitting system, where the dash size represents the tube or hose diameter in 1/16-inch increments (12/16 = 3/4 inch).
