Portex® Directional Endotracheal Tubes are engineered precisely for maxillofacial surgery. PDT tubes are available in a variety of configurations including pediatric and adult sizes. Portex® PDT tubes feature a preformed curve molded into the tube and are available in either cuffed or uncuffed, and oral/nasal configurations. These tubes are indicated for use in airway management during surgical procedures involving the head, neck, and/or mouth, where it is beneficial to remove or direct breathing circuits away from the operative field. 100/136/050 ID : 5.0mm, OD : 6.9 mm 100/136/055 ID : 5.5mm, OD : 7.6mm 100/136/060 ID : 6.0mm, OD : 8.2mm 100/136/065 ID : 6.5mm, OD : 8.9mm 100/136/070 ID : 7.0mm, OD : 9.6mm 100/136/075 ID : 7.5mm, OD : 10.3mm 100/136/080 ID : 8.0mm, OD : 10.9mm 100/136/085 ID : 8.5mm, OD : 11.6mm Notes: All Portex® PDT tubes come with a standard 15 mm ISO connector. Packaged: 10 Each per Box.