Simport Urisafe B350-4L HDPE 24 Hr Urine Collection Container with Polypropylene Cap, 4L Volume (Case of 30) The unique snap valve pour spout is easily popped open and offers dripless pouring Specially designed leakproof screw cap with liner for safer transport Large centrally located handle for good balance and ease of manipulation Metal free and resistant to hydrochloric acid Sample volumes can be read in 100 ml increments