RESPIRONICS EVERGO PORTABLE OXYGEN CONCENTRATOR SYSTEM GREAT CONDITION - $499 (Sunrise)

RESPIRONICS EVERGO PORTABLE OXYGEN CONCENTRATOR SYSTEM GREAT CONDITION For sale this Respironics Evergo Portable Oxygen Concentrator System in great condition.
As pictured AC charger, Car charger, carry bag and rolling caddy are included.
New retails for over US$ 4,000 Just tested and is working perfect and very quiet and batteries are in great condition too.
Charger is not the original but is a perfect match.
Cosmetically in good condition just some minor marks and scratches from storage.
Please check all pictures for details and to make your own evaluation.
Total weight 15 lb.