Urintainer Urine containers 30ml with paper label These urine containers are designed from medical grade plastic with exceptional clarity which are very stable and stackable. Different types of urine containers: 25174E Urintainer Urine container 30ml in polypropylene with red screw cap, with paper label. 25176E Urintainer Urine container 30ml in polypropylene with red screw cap, with paper label and sterile.