Dynarex Resp-O2™ Oxygen Cylinders are premium-grade containers designed to safely and effectively store liquid oxygen for use in medical facilities and homecare settings. The Cylinders are constructed from durable, yet lightweight materials (25% to 40% lighter than steel), making them easy to carry and transport. The brushed aluminum tanks feature a clear coat finish for long-lasting protection. Resp-O2 Oxygen Cylinders are available in M-6 (B), M-9 (C), M-15 (D) and M-24 (E) models to meet the specific needs of a variety of patients.