Abstract: A transfer set for transferring fluids from a first container, such as a conventional vial, to a second container, such as a conventional syringe. The transfer set includes an integral tubular housing having a tubular collar surrounding the rim of the vial, a radial portion sealingly engaging the stopper in the vial, an integral tubular transfer member and an outer tubular portion surrounding at least the distal portion of the tubular transfer member, a piercing member within the tubular transfer member and a closure releasably retaining the distal end of the piercing member.