Aircraft oxygen system SK 12-4

04 The SK 12-4 Four Cubic Foot Oxygen System Six Cubic Foot Complete Oxygen System - Scroll Down to Purchase Now A COMPLETE SYSTEM This Four Cubic Foot complete system is a self contained aluminum cylinder unit with no installation required. It’s easy to use and has no FAA weight and balance change necessary. This Four Cubic Foot complete oxygen system includes a pressurized cylinder with oxymizer cannulas, lines, a flow indicator, quick disconnects, and a spare mask. The SK 12-4 Four Cubic Foot complete oxygen system is easy to refill with aviation-grade breathing oxygen (MIL-027210, Type1) . Its lightweight aluminum cylinder is easy to fasten to the back of a cockpit seat, making it truly portable.