Gentec click-style EMS oxygen regulators are available with either CGA 870 or CGA 540 inlet connections. These durable Chrome-plated brass body, 1/2" diameter UL-listed gauge, a locking ring on the T-handle to prevent accidental removal, and the FDA and NIOSH-recommended sealing-type washers. A hose barb fitting is standard on all regulators, while one or two DISS male (with check) fittings are available on all 15-25 LPM models (in addition to the hose barb). GENTEC regulators offer 11 flow positions and large, easy to read flow rates. All GENTEC medical products are backed by our standard 5-year warranty.