Green Nipple Nut-and-Nipple 'Christmas Tree' Swivel Adapter for Oxygen Tubing & Concentrators

Hudson's Green "Christmas Tree" Adapters allow oxygen tubing (such as standard 3/16" inner diameter tubing sold on this site) to connect easily to stationery oxygen concentrators, flowmeters, cylinders and related products with larger flow outlets. The adapters swivel feature provides extra freedom of movement for your setup and prevents kinking or pulling