A cap is described for connection to a medical connector, the cap includes a housing having a top wall and sidewall forming a cavity, and an integrally formed protrusion. The protrusion includes an inner thread on an inner surface, the inner thread being sufficient to interlock with a mating feature of a female needleless connector. The inner surface of the protrusion defines a second cavity. The outer surface of the sidewall of the protrusion is tapered and adapted to engage a male luer connector in a press-fit connection. The second cavity configured to define a chamber to contain an absorbent material and disinfectant or antimicrobial agent. The cap may also include a peel seal to prevent the disinfectant or the antimicrobial agent from exiting the second cavity. An exterior sidewall surface of the housing may include a plurality of grip members.
