H2O Odyssey Extra Air Source For Sale. $175.00 + shipping - H2Odyssey Extra Air Source Balanced 1st Stage, with Yoke Kit, - 6 cu.ft Tank - Pressure Gauge - EAS Bag System is less than one year old. Purchased new in July of 2009 for $320.00. The tank has a sticker on it that states " This cylinder has passed a visual inspection performed on the date punched. Valid 1 year from this date." The date punched in June, 2009. The system has only been in the water for 3 dives. I really like the system and it functions well, but I am a really small person and its just a tad too heavy for me to wear on my BCD, so I am thinking about getting a smaller 3 cu ft Spare air. I will sell this unit for $175.00 + shipping. This item is in Illinois. If you are interested please contact me at firstname.lastname@example.org.