After extensive testing, we have found that we need a regulator with the following specs:Inlet Pressure – 150 bar max. (High pressure cylinder storage)Outlet pressure – 0.05 bar (5 kPa)Fixed outlet pressure – preferably no adjustment knob, no pressure gauge and no filterInlet and outlet – ¼” NPT Female threadAs small as possibleCE and US certifiedIf you think you may have something that can fulfill the above requirements, please let me know your offer based on minimum orders of 100 pieces every 1 or 2 months.If you need to manufacture this for me, that would be OK.Kind regardsCountry:Thailand