Oxygen Nipple Connector, also known as Oxygen Nut or Christmas Tree Adapter, allows small oxygen tubing to easily connect to standard oxygen flowmeters, oxygen cylinders, oxygen concentration or other related products. ME1103 Flowmeter connector features special swivel nut design to prevent oxygen tubing from kinking during installation or dismantling. The deep grooved nipple barbs also prevent leakage. Oxygen Connector is not made with natural rubber latex and for single patient use. ME1103 O2 Connector is available in various colors.