The 2-stage Broco Underwater HVR-4401 regulator (used with 3/8" I.D. Oxygen hose) delivers the high volume of oxygen required to optimize Ultrathermic cutting performance. Flows 4400 cu ft per hour.
UL Listed, the HVR-4401 has been designed and manufactured for ruggedness, ease of operation and maximum efficiency.

Maximum Inlet Pressure: 3000 psig
Weight: 9.0lb
Delivery Pressure: 0 - 350 psig

To Adjust Gas Delivery Pressure for Depth:
90 psi requirement at torch end
Depth x 0.445 = ambient pressure
Ambient Pressure + 90 psi Torch Requirement = Regulator Setting

EXAMPLE
Dive of 190 fsw, 190 x 0.445 = 85 psi
85 psi + 90 psi = 175 psi gauge setting topside.