The Ferno 804 ORO2 Oxygen Regulator is a reliable and incredibly durable oxygen regulator that includes a pressure gauge measuring up to 4000 psi.

Warranty: 5 Years. 

This oxygen regulator has a CGA 870 pin index connection and a CGA 540 DISS inlet for H and M-size oxygen cylinders. It's also compatible with multiple size cylinders for flexible use. 

The gauge is easy to read with a window-style flow reading, and has flow specifications ranging from 0 - 25 lpm with settings of ¼, ½, 1, 2, 3, 4, 6, 8, 10, 15 and 25. The regulator gauge boasts accurate readings with a rate of plus or minus 10%.