See the Propane page under the Pure Gases Tab on the Menu of our Specialty Gas & Equipment Catalog for detailed information of gas purity http://www.airgassgcatalog.com/catalog/
Specifications
Size 350LP Low Pressure Industrial Cylinder
DOT Specification: 4BW-240/260
O.D.: 16" - 41 cm
Length: 41" - 127 cm
Weight: 75 lbs - 34 kg
Water Volume: 3.83 Cubic Feet – 108.5 ltrs
Sizes may vary by location. Contact your Airgas representative or local branch location for availability in your area.