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Puritan Bennett 840 Oxygen Sensor Replacement

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Puritan Bennett 840 Oxygen Sensor Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

  • Open the replacement oxygen sensor and O-ring. Make sure the O-ring is at the threaded base of the oxygen sensor, and screw (clockwise) until snug.

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