Victor Model HPL270D-250 PMT Compressed Inert Gas Regulator Valve
  For sale is a Victor Model HPL270D-250 PMT Compressed Gas Regulator
  Valve.  200 PSI Pressure gauge.  Labeled: High Purity Regulator /
  Model HPL270D-250 PMT / Maximum inlet pressure 350 PSIG.
  Additionally labeled: Air / Nitrogen / Oxygen / Inert Gases / Carbon
  Dioxide and Nitrous Oxide.  NOTE:  This regulator was removed from
  use at a manufacturing plant that has recently ceased operations.