The Econo-Cyl® Liquid Cylinder offers a thick stainless steel outer jacket, an all-metal shock absorbing footring, color-coded valve handles, and color-coded safeties. Built with our legendary Composite Super Insulation™ and Chart Vacuum Technology®, the Econo-Cyl series provides maximum gas utilization for your customers. The most popular models have been streamlined, making them the preferred choice in economical transportable liquid cylinders. Product Highlights: Ideal for liquid nitrogen, oxygen, argon, CO2 or nitrous oxide All stainless steel inner and outer cylinder construction Thick, dent-resistant outer shell Four handling ring supports with large one-inch pipe size ring Four-inch galvanized casters on 230 models Integrated pull handle on 230 square base model Color-coded valve handles and name tags for easy identification of the plumbing functions Roto-Tel™ Liquid Level Gauge System Five-year vacuum warranty