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Oxygen wrench
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Oxygen bottles with a CGA870 post valves need a wrench to open them. This hand wheel will allow you to turn the stem. The size is comfortable and will help prevent over torqueing the valve seat. There is also a file without writing on it for non O2 bottles. The profile is printed with 5 walls and 15% crosshatch infill for strength and durability. No supports needed.
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