Home / Products / O2 Western Regulator SKU: 692 Categories: Medical Equipment, Uncategorized Tag: Ambulance Parts Description Description 50 PSI, M1-540-P – Oxygen regulator w/ gauge Related products Whelen 50W Clear Halogen Bulb H50SN12 View Part Whelen Lin3 LED 300 Smart Red Clear RSR02ZCR Flash View Part 35 Watt Replacement Bulb View Part Whelen 700 Red Linear Clear Lens View Part