Oxygen  regulators CGA 870 for medical use that come with an adjustable flow from 0 to 25 Lpm and you will use in conjunction with small cylinders type C, D, E, Jumbo D which comes with Yoke Pin Index . The oxygen regulators for daily oxygen tank requirements to use in Emergency oxygen kits, portable sets, ambulance services, EMS regulators 0-25 lpm, home care, and travel.. Oxygen regulator CGA870 valve with Diss outlet to use with humidifier or nebulizers or barb outlet to use with an oxygen mask or nasal cannula. Applications: Medical Purpose only