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This 12-volt DC power cord is designed to connect Puritan Bennett GoodKnight 420 series CPAP systems directly to a 12-volt battery power source, such as marine battery. Great for those who travel by vehicle often such as campers or long distance truck drivers.
Compatibility Information: Compatible with the GoodKnight 420G, GoodKnight 420E, GoodKnight 420S, GoodKnight 420SP, etc.
Note: This cord will not work with GoodKnight 425 Series BiLevel systems.
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