Harris 425-125-540 Regulator
The Model 425 also has one-piece encapsulated seat design with an internal filter & PTFE teflon seat. It features a brass bonnet & body with 2 1/2inch dual scale gauges. It has a tamper proof, self-reseating internal HP safety valve & conforms to a CGA E-4. Its' bronze adjusting screw resists corrosion & provides for smooth adjusting. This is the Model 425 for Oxygen gas with CGA 540 Oxygen tank fitting.
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