Abstract: A detachable hose coupling includes a generally cylindrical female piece and a male piece having a first end of a size and configuration to permit insertion into the female piece and seat at a fixed point within the female piece, the male piece having a second end for connection to a hose and having a flange collar extending radially outward from the second end and which is longitudinally displaced a predetermined distance from an end of the female piece when said first end of the male piece is completely connected and seated within said female piece, and wherein the flange collar is provided with opposing flats. The female piece includes a notch in one end.