E-6 System features:Provides 28 minutes of oxygen at 6 lpm. Safe and easy to use. Ready in seconds to deliver life-saving oxygen. Cylinder measures 11" tall , weighs 3 lbs.Portable, convenient,lightweight, no tools required Meets all FDA requirements for portable emergency oxygen. Training program in DVD format explains the proper use and care for the oxygen system. Available in 4, 9, 15 or 24 CF. models.International shipping rates upon request.