An apparatus (10) for generating nanobubbles for use with fluid dispensing fittings is described. The apparatus includes a longitudinal shaft having a first end portion (12), a body (16) and a second end portion (14). The first end portion (12) and the second end portion ( 14) are adapted for connection with the body (16). The first end portion (12) and the second end portion (14) each includes a conical-shaped guide wherein the body comprises airfoil- shaped projecting members (19) arranged circumferentially on the outer circumferential surface of the body (16).
