PES offers a full range of cylinders from 5 lbs. to over 1,000 lbs. All PES cylinders conform with strict compliance to DOT specifications 4BA, 4BW, and 4E. In addition, most cylinders conform and are approved under Transport Canada specifications 4BAM, 4BWM, and 4EM. PES cylinders are triple tested with dry pneumatic air and are steel shot blasted prior to painting. PES cylinders have powder coat paint for maximum rust protection.