The Ferno 818 ORO2 Oxygen Regulator (#0819742) is a brass unibody regulator with a CGA 870 pin index connection, (2) DISS high flow ports, and a 0 - 3000 psi gauge. 

Warranty: 5 Years. 

This regulator reaches 12 positions for flow settings, which range from 1/4, 1/2, 1, 2, 3, 4, 6, 8, 10, 15, and 25 liters per minute. At 2000 psi, the regulator provides pressure at 57 psig with accurate reading within 10%. There's a C-ring clamp that assists in the teehandle. 

The 818 ORO2 oxygen regulator is gold anodized with a corrosion-resistant finish that ensures a long lifespan.