CareFusion 003762 AirLife Ventilator Circuit Contents: One - 7ft. Breathing Circuit with Cuttable Cuffs, Exhalation Valve with Polyisoprene Diaphragm, and Tube hanger One - 3ft. Humidifier Line with Cuttable Cuffs One - 6ft. Exhalation Valve, Drive Line One - 6ft. Pressure Line (Blue, 3/16inch I.D.)